S1720, S2700, S5700, and S6720 V200R011C10 Command Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.

IP Routing Table Management Commands

Command Support
arp vlink-direct-route advertise
display fib
display fib acl
display fib interface
display fib ip-prefix
display fib longer
display fib next-hop
display fib statistics
display fib statistics all
display ip routing-table
display ip routing-table limit
display ip routing-table protocol
display ip routing-table statistics
display ip routing-table time-range
display ipv6 fib
display ipv6 routing-table
display ipv6 routing-table limit
display ipv6 routing-table protocol
display ipv6 routing-table statistics
display ipv6 routing-table time-range
display rm bfd-session
display rm interface
display rm ipv6 bfd-session
display rm ipv6 interface
display router id
display route resource
display snmp-agent trap feature-name l3mb all
display snmp-agent trap feature-name rm all
ecmp load-balance
ecmp local-preference disable
fib regularly-refresh
fib regularly-refresh disable
fib threshold-alarm
fib trap lpm-fail enable
fib trap lpm-fail history
fib trap lpm-fail interval
ip frr (system view)
ip prefix-limit
ip prefix-limit log-interval
ipv6 fib-loadbalance-type hash-based
ipv6 fib regularly-refresh
ipv6 fib regularly-refresh disable
ipv6 prefix-limit
ipv6 prefix-limit log-interval
l3-forward-entry aging
l3-forward-entry regularly-check
refresh fib
refresh ipv6 fib
reset ip routing-table statistics protocol
reset ipv6 routing-table statistics protocol
router id
snmp-agent trap enable feature-name l3mb
snmp-agent trap enable feature-name rm

Command Support

The following describes command support of S sereis switches. For details about support for some specific commands or parameters, see the commands.

Only the S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, and S5720S-SI support BFD.

Only the S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI, S6720LI, S6720S-LI, S5720LI, S5720S-LI, S2720EI, S1720X-E, S1720GW-E, S1720GWR-E, S1720GW, S1720GWR, S1720X support commands with the vpn-instance parameter.

arp vlink-direct-route advertise

Function

The arp vlink-direct-route advertise command configures the advertisement of IPv4 ARP Vlink direct routes.

The undo arp vlink-direct-route advertise command cancels advertising IPv4 ARP Vlink direct routes.

By default, a device does not advertise IPv4 ARP Vlink direct routes.

Only the S5720EI, S5720HI, S6720S-EI and S6720EI support this command.

Format

arp vlink-direct-route advertise [ route-policy route-policy-name ]

undo arp vlink-direct-route advertise

Parameters

Parameter	Description	Value
route-policy route-policy-name	Specifies the name of the route-policy used to filter IPv4 ARP Vlink direct routes.	The name is a string of 1 to 40 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

System view, VPN instance view, VPN instance IPv4 address family view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Generally, IPv4 ARP Vlink direct routes are only used to guide local traffic forwarding. To control the routing table size and maintain routing table stability, devices are prohibited from importing these direct routes into dynamic routing protocols for advertisement. In some situations, however, devices need to perform operations based on specific routes. For example, a device needs to direct remote traffic for different users using different export policies. Subsequently, the device needs to import IPv4 ARP Vlink direct routes into dynamic routing protocols and advertises them to the remote end.

If you only need to visit several users, you can specify the route-policy route-policy-name parameter to filter IPv4 ARP Vlink direct routes to be advertised. This operation can control the routing table size and implement precise control over data traffic.

Configuration Impact

After you specify the route-policy route-policy-name parameter to filter the IPv4 ARP Vlink direct routes to be advertised, only the routes that match the specified route-policy are advertised.

Follow-up Procedure

IPv4 ARP Vlink direct routes need to be imported into the routing tables of dynamic routing protocols on the device running dynamic routing protocols before being advertised by dynamic routing protocols.

Precautions

You need to run the route-policy command to configure a route-policy. If the specified route-policy does not exist, IPv4 ARP Vlink direct routes cannot be filtered.

Example

# Configure the advertisement of IPv4 ARP Vlink direct routes and configure a route-policy policy1 to allow route 10.1.1.4/32 to be advertised.

<HUAWEI> system-view

[HUAWEI] ip ip-prefix prefix1 permit 10.1.1.4 32

[HUAWEI] route-policy policy1 permit node 10

[HUAWEI-route-policy] if-match ip-prefix prefix1

[HUAWEI-route-policy] quit

[HUAWEI] arp vlink-direct-route advertise route-policy policy1

display fib

Function

The display fib command displays information about the FIB table.

Format

display fib [ slot-id ] [ vpn-instance vpn-instance-name ] [ verbose ]

Parameters

Parameter	Description	Value
slot-id	Displays information about the FIB table with a specified slot ID.	The value is an integer and the value range depends on the device configuration.
vpn-instance vpn-instance-name	Displays information about the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
verbose	Displays detailed information about the FIB table.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The display fib command displays information about the FIB table. Each row represents a route.

If there are lots of routes, using wildcard (|, begin, exclude, include, regular-expression) to display information or details lasts a long time. You can press Ctrl+C to terminate information display.

Example

# Display brief information about the FIB table.

<HUAWEI> display fib
Route Flags: G - Gateway Route, H - Host Route,    U - Up Route                 
             S - Static Route,  D - Dynamic Route, B - Black Hole Route         
             L - Vlink Route
--------------------------------------------------------------------------------
 FIB Table:                                                                     
 Total number of Routes : 5                                                     
                                                                                
Destination/Mask   Nexthop         Flag  TimeStamp     Interface      TunnelID  
192.168.150.111/32 127.0.0.1       HU    t[117]        InLoop0        0x0       
127.0.0.1/32       127.0.0.1       HU    t[54]         InLoop0        0x0       
127.0.0.0/8        127.0.0.1       U     t[54]         InLoop0        0x0       
192.168.150.0/24   192.168.150.111 U     t[117]        MEth0/0/1      0x0       
0.0.0.0/0          192.168.150.1   GSU   t[117]        MEth0/0/1      0x0

# Display information starting from the line that contains 169.254.0.0

<HUAWEI> display fib | begin 10.254.0.0

Destination/Mask  Nexthop   Flag  TimeStamp  Interface   TunnelID

10.254.0.0/16    10.2.1.1   U     t[0]       Vlanif10     0x0

10.12.0.0/16     10.2.1.1   U     t[0]       Vlanif10     0x0

127.0.0.0/8      127.0.0.1  U     t[0]       InLoop0      0x0

# Display all lines that contain Vlanif10.

<HUAWEI> display fib | include Vlanif10

Destination/Mask  Nexthop   Flag  TimeStamp  Interface  TunnelID

10.254.0.0/16    10.2.1.1   U     t[0]       Vlanif10    0x0

10.12.0.0/16     10.2.1.1   U     t[0]       Vlanif10    0x0

# Display all lines that do not include 192.168.150.0.

<HUAWEI> display fib | exclude 192.168.150.0
                                                                                
Destination/Mask   Nexthop         Flag  TimeStamp     Interface      TunnelID  
192.168.150.111/32 127.0.0.1       HU    t[117]        InLoop0        0x0       
127.0.0.1/32       127.0.0.1       HU    t[54]         InLoop0        0x0       
127.0.0.0/8        127.0.0.1       U     t[54]         InLoop0        0x0       
0.0.0.0/0          192.168.150.1   GSU   t[117]        MEth0/0/1      0x0

Table 7-198 Description of the display fib command output

Item	Description
Route Flags	Flag of a route.
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, B and T. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S (static route): indicates that the route is manually configured. D (dynamic route): indicates that the route is generated based on the routing algorithm. B (blackhole route): indicates that the next hop is a null interface. L: indicates a Vlink route.
TimeStamp	Timestamp, which indicates the time equal to FIB entry generation time minus system startup time.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0x0, packets matching the entry are forwarded through the MPLS tunnel. If the value is 0x0, packets matching the entry are not forwarded through the MPLS tunnel.

# Display detailed information about the FIB table.

<HUAWEI> display fib verbose

Route Flags: G - Gateway Route, H - Host Route,    U - Up Route                 
             S - Static Route,  D - Dynamic Route, B - Black Hole Route         
             L - Vlink Route
------------------------------------------------------------------------------  
 FIB Table:                                                                     
 Total number of Routes : 3                                                     
                                                                                
 Destination: 127.0.0.1           Mask     : 255.255.255.255                    
 Nexthop    : 127.0.0.1           OutIf    : InLoopBack0                        
 LocalAddr  : 127.0.0.1           LocalMask: 0.0.0.0                            
 Flags      : HU                  Age      : 354280sec                          
 ATIndex    : 0                   Slot     : 0                                  
 LspFwdFlag : 0                   LspToken : 0x0                                
 InLabel    : NULL                OriginAs : 0                                  
 BGPNextHop : 0.0.0.0             PeerAs   : 0                                  
 QosInfo    : 0x0                 OriginQos: 0x0                                
 NexthopBak : 0.0.0.0             OutIfBak : [No Intf]                          
 LspTokenBak: 0x0                 InLabelBak : NULL                             
 LspToken_ForInLabelBak : 0x0                                                   
 EntryRefCount : 0                                                              
 VlanId : 0x0                                                                   
 BgpKey : 0                                                                     
 BgpKeyBak : 0                                                                  
 LspType         : 0              Label_ForLspTokenBak   : 0                    
 MplsMtu         : 0              Gateway_ForLspTokenBak : 0.0.0.0              
 NextToken       : 0x0            IfIndex_ForLspTokenBak : 0                    
 Label_NextToken : 0              Label : 0                                     
 LspBfdState     : 0                                                            
                                                                                
 Destination: 127.255.255.255     Mask     : 255.255.255.255                    
 Nexthop    : 127.0.0.1           OutIf    : InLoopBack0                        
 LocalAddr  : 127.0.0.1           LocalMask: 0.0.0.0                            
 Flags      : HU                  Age      : 354280sec                          
 ATIndex    : 0                   Slot     : 0                                  
 LspFwdFlag : 0                   LspToken : 0x0                                
 InLabel    : NULL                OriginAs : 0                                  
 BGPNextHop : 0.0.0.0             PeerAs   : 0                                  
 QosInfo    : 0x0                 OriginQos: 0x0                                
 NexthopBak : 0.0.0.0             OutIfBak : [No Intf]                          
 LspTokenBak: 0x0                 InLabelBak : NULL                             
 LspToken_ForInLabelBak : 0x0                                                   
 EntryRefCount : 0                                                              
 VlanId : 0x0                                                                   
 BgpKey : 0                                                                     
 BgpKeyBak : 0                                                                  
 LspType         : 0              Label_ForLspTokenBak   : 0                    
 MplsMtu         : 0              Gateway_ForLspTokenBak : 0.0.0.0              
 NextToken       : 0x0            IfIndex_ForLspTokenBak : 0                    
 Label_NextToken : 0              Label : 0                                     
 LspBfdState     : 0                                                            
                                                                                
 Destination: 255.255.255.255     Mask     : 255.255.255.255                    
 Nexthop    : 127.0.0.1           OutIf    : InLoopBack0                        
 LocalAddr  : 127.0.0.1           LocalMask: 0.0.0.0                            
 Flags      : HU                  Age      : 354280sec                          
 ATIndex    : 0                   Slot     : 0                                  
 LspFwdFlag : 0                   LspToken : 0x0                                
 InLabel    : NULL                OriginAs : 0                                  
 BGPNextHop : 0.0.0.0             PeerAs   : 0                                  
 QosInfo    : 0x0                 OriginQos: 0x0                                
 NexthopBak : 0.0.0.0             OutIfBak : [No Intf]                          
 LspTokenBak: 0x0                 InLabelBak : NULL                             
 LspToken_ForInLabelBak : 0x0                                                   
 EntryRefCount : 0                                                              
 VlanId : 0x0                                                                   
 BgpKey : 0                                                                     
 BgpKeyBak : 0                                                                  
 LspType         : 0              Label_ForLspTokenBak   : 0                    
 MplsMtu         : 0              Gateway_ForLspTokenBak : 0.0.0.0              
 NextToken       : 0x0            IfIndex_ForLspTokenBak : 0                    
 Label_NextToken : 0              Label : 0                                     
 LspBfdState     : 0

Table 7-199 Description of the display fib verbose command output

Item	Description
Destination	Destination address.
Mask	Mask.
Nexthop	Next hop.
OutIf	Outbound interface.
LocalAddr	Local IP address.
LocalMask	Mask of the local IP address.
Flags	Current flag, which is the combination of G, H, U, S, D, and B. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S (static route): indicates that the route is manually configured. D (dynamic route): indicates that the route is generated based on the routing algorithm. B (blackhole route): indicates that the next hop is a null interface. L: indicates a Vlink route.
Age	Lifetime of a route, in seconds.
ATIndex	Index of the virtual link connecting the local end and the gateway.
Slot	Slot ID of the outbound interface.
LspFwdFlag	Forwarding flag of an LSP.
LspToken	Forwarding ID of an LSP.
InLabel	Inner tag of a VPN LSP.
OriginAs	Original AS number.
BGPNextHop	Address of the BGP next hop.
PeerAs	Neighbor AS number.
QosInfo	QoS information.
OriginQos	Original QoS information.
NexthopBak	Backup of the next hop.
OutIfBak	Backup of the outbound interface.
LspTokenBak	Backup of the LSP ID.
InLabelBak	Backup of the VPN LSP inner label.
LspToken_ForInLabelBak	LSP ID backup in the backup inner label of a VPN LSP.
VlanId	VLAN ID.
BgpKey	Key value of the BGP route.
BgpKeyBak	Backup key value of the BGP route.
LspType	LSP type.
Label_ForLspTokenBak	Backup label of the LSP.
MplsMtu	MTU of MPLS packets.
Gateway_ForLspTokenBak	Next hop of the backup LSP.
NextToken	Token of the tunnel.
IfIndex_ForLspTokenBak	Backup outbound interface of the LSP.
Label_NextToken	Label of the tunnel.
Label	Label of the current LSP.
LspBfdState	Status of the BFD session that detects an LSP.

display fib acl

Function

The display fib acl command displays information about FIB entries that match a specified ACL rule.

Format

display fib [ vpn-instance vpn-instance-name ] acl acl-number [ verbose ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
acl-number	Displays information about the FIB table with a specified ACL rule.	The value is an integer that ranges from 2000 to 2999.
verbose	Displays detailed information about the FIB table.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display fib acl command to check information about FIB entries that match a specified ACL rule.

Example

# Display FIB entries that match an ACL rule.

<HUAWEI> display fib acl 2010

Route Entry matched by access-list 2010

 Summary Counts: 1

Destination/Mask Nexthop  Flag TimeStamp Interface     TunnelID

127.0.0.0/8     127.0.0.1 U    t[0]      InLoop0       0x0

Table 7-200 Description of the display fib acl command output

Item	Description
Route Entry matched by access-list	FIB entries that match an ACL rule.
Summary Counts	Total number of the FIB entries.
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, B and T. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S: indicates a static route. D: indicates a dynamic route. B (blackhole route): indicates that the next hop is a null interface. T: indicates ingress TOKEN_SETBYLSPM nodes.
TimeStamp	Timestamp, which indicates the lifetime of an entry, in seconds.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0, packets matching the entry are forwarded through the MPLS tunnel. If the value is 0, packets matching the entry are not forwarded through the MPLS tunnel.

display fib interface

Function

The display fib interface command displays information about FIB entries with a specified outbound interface.

Format

display fib [ vpn-instance vpn-instance-name ] interface interface-type interface-number

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
interface-type interface-number	Specifies the type and number of the outbound interface to a specified destination address.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display fib interface command to check information about FIB entries with a specified outbound interface.

Example

# Display FIB entries with a specified outbound interface.

<HUAWEI> display fib interface vlanif10

Destination/Mask   Nexthop    Flag TimeStamp   Interface        TunnelID

10.1.1.0/24        10.1.1.2    U    t[115]     Vlanif10           0x0

Table 7-201 Description of the display fib interface command output

Item	Description
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, and B. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S: indicates a static route. D: indicates a dynamic route. B (blackhole route): indicates that the next hop is a null interface.
TimeStamp	Timestamp, which indicates the lifetime of an entry, in seconds.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0, packets matching the entry are forwarded through the MPLS tunnel. If the value is 0, packets matching the entry are not forwarded through the MPLS tunnel.

display fib ip-prefix

Function

The display fib ip-prefix command displays information about the FIB table.

Format

display fib [ vpn-instance vpn-instance-name ] ip-prefix prefix-name [ verbose ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
prefix-name	Specifies the name of an IP prefix list.	The value is a string of 1 to 169 characters.
verbose	Displays detailed information about the FIB table.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The command displays FIB entries that match a specified IP prefix list.

If 0 FIB entries match, the command output displays that zero FIB entries match.

If the name of an IP prefix list is not found, all FIB entries are displayed.

Example

# Display FIB entries matching the IP prefix list abc0.

<HUAWEI> display fib ip-prefix abc0

Route Entry matched by prefix-list abc0

 Summary Counts: 4

Destination/Mask  Nexthop  Flag  TimeStamp  Interface   TunnelID

127.0.0.0/8      127.0.0.1 U     t[0]       InLoop0       0x0

127.0.0.1/32     127.0.0.1 U     t[0]       InLoop0       0x0

172.16.0.0/8     10.1.1.1  SU    t[0]       Vlanif10      0x0

172.16.0.0/15    10.1.1.1  SU    t[0]       Vlanif10      0x0

Table 7-202 Description of the display fib ip-prefix command output

Item	Description
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, and B. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S: indicates a static route. D: indicates a dynamic route. B (blackhole route): indicates that the next hop is a null interface.
TimeStamp	Timestamp, which indicates the lifetime of an entry, in seconds.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0, packets matching the entry are forwarded through the MPLS tunnel. If the value is 0, packets matching the entry are not forwarded through the MPLS tunnel.

display fib longer

Function

The display fib longer command displays FIB entries that match a specified parameter.

The display fib [ slot-id ] destination-address command displays FIB entries that match a specified destination IP address. If the specified destination IP address matches an FIB entry in the natural mask range, all the subnets are displayed. Otherwise, FIB entries are displayed based on the longest matching principle.

The display fib [ slot-id ] destination-address destination-mask command displays FIB entries that accurately match the destination address and mask.

The display fib [ slot-id ] destination-address longer command displays all FIB entries that match destination IP addresses in the natural mask range.

The display fib [ slot-id ] destination-address destination-mask longer command displays all FIB entries that match destination IP addresses in a specified mask range.

The display fib [ slot-id ] destination-address1 destination-mask1 destination-address2 destination-mask2 command displays FIB entries that match destination IP addresses in the range of destination-address1 destination-mask1 to destination-address2 destination-mask2.

If slot-id is specified, FIB entries on the device are displayed.

Format

display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 [ destination-mask1 ] [ longer ] [ verbose ]

display fib [ slot-id ] [ vpn-instance vpn-instance-name ] destination-address1 destination-mask1 destination-address2 destination-mask2 [ verbose ]

Parameters

Parameter	Description	Value
slot-id	Displays information about the FIB table with a specified slot ID.	The value is an integer and the value range depends on the device configuration.
vpn-instance vpn-instance-name	Displays information about the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
destination-address1	Indicates destination IP address 1.	The value is in dotted decimal notation.
destination-mask1	Indicates subnet mask 1.	The value is in dotted decimal notation or an integer that ranges from 0 to 32.
destination-address2	Indicates destination IP address 2.	The value is in dotted decimal notation.
destination-mask2	Indicates subnet mask 2.	The value is in dotted decimal notation or an integer that ranges from 0 to 32.
longer	Displays FIB entries matching a specified network segment or mask.	-
verbose	Displays detailed information about the FIB table.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display fib longer command to check FIB entries that match a specified condition.

Example

# Display FIB entries that match destination address 172.16.0.0 in the natural mask range or based on the longest match principle.

<HUAWEI> display fib 172.16.0.0

  Route Entry Count: 1

Destination/Mask  Nexthop  Flag  TimeStamp  Interface  TunnelID

172.16.0.0/16     10.1.1.1 U     t[0]       Vlanif10     0x0

# Display the FIB entries with the destination addresses in the range of 72.16.0.0/16 to 172.16.0.6/16.

<HUAWEI> display fib 172.16.0.0 255.255.0.0 172.16.0.6 255.255.0.0

  Route Entry Count: 1

Destination/Mask  Nexthop  Flag  TimeStamp  Interface  TunnelID

172.16.0.1/8      10.1.1.1  U     t[0]       Vlanif10     0x0

Table 7-203 Description of the display fib longer command output

Item	Description
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, and B. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S: indicates a static route. D: indicates a dynamic route. B (blackhole route): indicates that the next hop is a null interface.
TimeStamp	Timestamp, which indicates the lifetime of an entry, in seconds.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0, packets matching the entry are forwarded through the tunnel. If the value is 0, packets matching the entry are not forwarded through the tunnel.

display fib next-hop

Function

The display fib next-hop command displays FIB entries that match a specified next-hop IP address.

Format

display fib [ vpn-instance vpn-instance-name ] next-hop ip-address

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about the FIB table of a specified VPN instance.	The value must be an existing VPN instance name.
ip-address	Specifies the next-hop IP address.	The value is in dotted decimal notation.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display fib next-hop command to check FIB entries that match a specified next-hop IP address.

Example

# Display FIB entries that match a specified next-hop IP address.

<HUAWEI> display fib next-hop 10.1.1.1

Destination/Mask   Nexthop         Flag TimeStamp     Interface      TunnelID

10.1.1.1/32        10.1.1.1        HU   t[115]        Vlanif10         0x0

Table 7-204 Description of the display fib next-hop command output

Item	Description
Destination/Mask	Destination address or mask length.
Nexthop	Next hop.
Flag	Current flag, which is the combination of G, H, U, S, D, and B. G (gateway route): indicates that the next hop is a gateway. H (host route): indicates that the route is a host route. U (available route): indicates that the route status is Up. S: indicates a static route. D: indicates a dynamic route. B (blackhole route): indicates that the next hop is a null interface.
TimeStamp	Timestamp, which indicates the lifetime of an entry, in seconds.
Interface	Outbound interface to the destination address.
TunnelID	Index of a forwarding entry. It is used in packet forwarding between the upstream and downstream boards. If the value is not 0, packets matching the entry are forwarded through the MPLS tunnel. If the value is 0, packets matching the entry are not forwarded through the MPLS tunnel.

display fib statistics

Function

The display fib statistics command displays the total number of IPv4 FIB entries.

Format

display fib [ slot-id ] [ vpn-instance vpn-instance-name ] statistics

Parameters

Parameter	Description	Value
slot-id	Displays status information about a specified IPv4 FIB module.	The value is an integer and the value range depends on the device configuration.
vpn-instance vpn-instance-name	Specifies the name of an IPv4 VPN instance.	The value must be an existing VPN instance name.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display fib statistics command to check the total number of IPv4 FIB entries.

Example

# Display the total number of IPv4 FIB entries.

<HUAWEI> display fib statistics

Route Entry Count : 30
Route Prefix Count : 30

Table 7-205 Description of the display fib statistics command output

Item	Description
Route Entry Count	Total number of FIB entries.
Route Prefix Count	Total number of route prefix entries.

display fib statistics all

Function

The display fib statistics all command displays IPv4 FIB entry statistics.

Format

display fib [ slot-id ] statistics all

Parameters

Parameter	Description	Value
slot-id	Specifies the slot ID of the switch on which IPv4 FIB entry statistics are displayed.	The value is an integer and the value range depends on the device configuration.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

When running the display fib statistics all command, you can view the IPv4 FIB route prefix capacity and the number of IPv4 FIB forwarding entries on the device.

Example

# Display statistics about IPv4 FIB entries on the switch in slot 0.

<HUAWEI> display fib 0 statistics all

IPv4 FIB Total Route Prefix Count :2 ; Entry Count : 2

IPv4 FIB Public Route Prefix Count :2 ; Entry Count : 2

IPv4 FIB VPN-instance vpna Route Prefix Count :0 ; Entry Count : 0

Table 7-206 Description of the display fib statistics all command output

Item	Description
IPv4 FIB Total Route Prefix Count: Entry Count:	Total number of IPv4 FIB route prefixes and forwarding entries on the local switch.
IPv4 FIB Public Route Prefix Count: Entry Count:	Total number of IPv4 route prefixes and forwarding entries on a public network.
IPv4 FIB VPN-instance vpna Route Prefix Count: Entry Count:	Total number of route prefixes and forwarding entries of IPv4 VPN instance vpna.

display ip routing-table

Function

The display ip routing-table command displays information about an IPv4 routing table.

Format

display ip routing-table [ vpn-instance vpn-instance-name ] [ verbose ]

display ip routing-table [ vpn-instance vpn-instance-name ] ip-address [ mask | mask-length ] [ longer-match ] [ verbose ]

display ip routing-table [ vpn-instance vpn-instance-name ] ip-address { mask | mask-length } nexthop nexthop-address [ verbose ]

display ip routing-table [ vpn-instance vpn-instance-name ] ip-address1 { mask1 | mask-length1 } ip-address2 { mask2 | mask-length2 } [ verbose ]

display ip routing-table [ vpn-instance vpn-instance-name ] acl { acl-number | acl-name } [ verbose ]

display ip routing-table [ vpn-instance vpn-instance-name ] ip-prefix ip-prefix-name [ verbose ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies the name of an VPN instance of an enabled IPv4 address family.	The value must be an existing VPN instance name.
verbose	Displays detailed information about active routes and inactive routes. If this keyword is not specified, only brief information about active routes is displayed.	-
ip-address	Displays the routes with the specified destination address.	The value is in dotted decimal notation.
nexthop nexthop-address	Displays the routes with the specified next-hop address.	The value is in dotted decimal notation.
longer-match	Displays the routes with the specified destination address and mask.	-
mask	Specifies the mask of the destination IP address.	The value is in dotted decimal notation.
mask-length	Specifies the mask length of the destination IP address.	The value is an integer that ranges from 0 to 32.
ip-address1	Specifies the start IP address in an IP address range. ip-address1 and ip-address2 determine an IP address range. Only the routes in the IP address range are displayed.	The value is in dotted decimal notation.
ip-address2	Specifies the end IP address in an IP address range. ip-address1 and ip-address2 determine an IP address range. Only the routes in the IP address range are displayed.	The value is in dotted decimal notation.
mask1	Specifies the subnet mask of the start IP address.	The value is in dotted decimal notation.
mask-length1	Specifies the mask length of the start IP address.	The value is an integer that ranges from 0 to 32.
mask2	Specifies the subnet mask of the end IP address.	The value is in dotted decimal notation.
mask-length2	Specifies the mask length of the end IP address.	The value is an integer that ranges from 0 to 32.
acl acl-number	Displays the routes that match the ACL with the specified ACL number. If the specified ACL does not exist, information about all active routes is displayed.	The value is an integer that ranges from 2000 to 2999.
acl acl-name	Displays the routes that match the ACL with the specified ACL name. If the specified ACL does not exist, information about all active routes is displayed.	The value is a string of 1 to 64 case-sensitive characters without spaces. The value must start with a letter.
ip-prefix ip-prefix-name	Displays the routes that match the specified IP prefix list. If the specified IP prefix list does not exist, information about all active routes is displayed.	The name is a string of 1 to 169 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

If the verbose keyword is not specified in the display ip routing-table command, each line in the command output indicates a route, including the destination address, mask length, protocol, preference, cost, flag, next hop, and outbound interface of the route.

An iterated route is counted as one route regardless of how many outbound interfaces and next hops the route finds.

Matching rules vary with parameters in the command:

If the display ip routing-table ip-address command is used, the routes that longest match the destination address are displayed.
If the display ip routing-table ip-address mask command is used, the routes that accurately match the destination address and mask are displayed.
If the display ip routing-table ip-address longer-match command is used, all the routes that match the IP address specified by the destination address and the natural mask are displayed.
If the display ip routing-table ip-address mask longer-match command is used, all the routes that match the IP address specified by the destination address and the input mask are displayed.
If the display ip routing-table ip-address1 mask1 ip-address2 mask2 command is used, the routes whose destination address ranges from ip-address1 mask1 to ip-address2 mask2 are displayed.

Example

# Display brief information about the current IPv4 routing table. The command output shows that there are two static routes with the same destination address 10.1.1.1/32 but different next hops.

<HUAWEI> display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 5        Routes : 5        

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

      10.1.1.1/32   Static  60   0           D   0.0.0.0         NULL0
                    Static  60   0           D   192.168.0.2     Vlanif100
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
  192.168.150.0/24  Direct  0    0           D   192.168.150.22  Vlanif4094
 192.168.150.22/32  Direct  0    0           D   127.0.0.1       Vlanif4094

Table 7-207 Description of the display ip routing-table command output

Item	Description
Route Flags	Flag of a route: R: indicates that the route is an iterated route. D: indicates that the route is delivered to the FIB table.
Routing Table: Public	The routing table is a public routing table. If the routing table is a private routing table, a private network name is displayed, for example, Routing Tables: ABC.
Destinations	Total number of destination networks or hosts.
Routes	Total number of routes.
Destination/Mask	Address and mask length of the destination network or host.
Proto	Routing protocol that learns a route.
Pre	Preference of a route.
Cost	Cost of a route.
Flags	Route flags in the heading of the routing table.
NextHop	Next-hop address of a route.
Interface	Outbound interface through which the next hop of a route is reachable.

# Display the summary of the routing table of the IPv4 VPN instance named vpn1.

<HUAWEI> display ip routing-table vpn-instance vpn1
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Table: vpn1
         Destinations : 3        Routes : 3

Destination/Mask    Proto  Pre  Cost     Flags NextHop         Interface

       10.1.1.0/24  Direct 0    0           D  10.1.1.1        Vlanif10
       10.1.1.1/32  Direct 0    0           D  127.0.0.1       Vlanif10
       10.5.5.0/24  Static 60   0          RD  10.1.1.2        Vlanif10

Table 7-208 Description of the display ip routing-table vpn-instance command output

Item	Description
Route Flags	Route flag: R: indicates an iterated route. D: indicates that the route is downloaded to the FIB table.
Routing Tables: vpn1	VPN routing table named vpn1.
Destinations	Total number of destination networks or hosts.
Routes	Total number of routes.
Destination/Mask	Address and mask length of the destination network or host.
Proto	Routing protocol.
Pre	Preference.
Cost	Route cost.
Flags	Route flag, that is, Route Flags in the heading of the routing table.
NextHop	Next hop.
Interface	Outbound interface through which the next hop is reachable.

# Display brief information about the current routing table. Route 10.2.2.2/32 is a static route with next hop 10.1.1.1. This route is an iterated route and has two outbound interfaces because 10.1.1.1 has two outbound interfaces.

<HUAWEI> display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 6        Routes : 7

   Destination/Mask  Proto   Pre  Cost Flags  NextHop    Interface

       10.1.1.1/32   Static  60   0      D    0.0.0.0    NULL0
                     Static  60   0      D    10.10.0.2  Vlanif100
       10.2.2.2/32   Static  60   0     RD   10.1.1.1    NULL0
                     Static  60   0     RD   10.1.1.1    Vlanif100
      10.10.0.0/24   Direct   0   0      D    10.10.0.1  Vlanif100
      10.10.0.1/32   Direct   0   0      D    127.0.0.1  Vlanif100
      127.0.0.0/8    Direct   0   0      D    127.0.0.1  InLoopBack0
      127.0.0.1/32   Direct   0   0      D    127.0.0.1  InLoopBack0

# Display detailed information about the IPv4 routing table.

<HUAWEI> display ip routing-table verbose
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 5        Routes : 5


Destination: 10.0.0.36/32
     Protocol: Direct           Process ID: 0
   Preference: 0                      Cost: 0
      NextHop: 127.0.0.1         Neighbour: 0.0.0.0
        State: Active Adv              Age: 01h03m56s
          Tag: 0                  Priority: high
        Label: NULL                QoSInfo: 0x0
   IndirectID: 0x0
 RelayNextHop: 0.0.0.0           Interface: InLoopBack0
     TunnelID: 0x0                   Flags:  D

Destination: 10.10.36.0/24
     Protocol: Direct           Process ID: 0
   Preference: 0                      Cost: 0
      NextHop: 10.10.36.2        Neighbour: 0.0.0.0
        State: Active Adv              Age: 00h26m36s
          Tag: 0                  Priority: high
        Label: NULL                QoSInfo: 0x0
   IndirectID: 0x0
 RelayNextHop: 0.0.0.0           Interface: Vlanif10
     TunnelID: 0x0                   Flags:  D

Destination: 10.10.36.2/32
     Protocol: Direct           Process ID: 0
   Preference: 0                      Cost: 0
      NextHop: 127.0.0.1         Neighbour: 0.0.0.0
        State: Active Adv              Age: 00h26m46s
          Tag: 0                  Priority: high
        Label: NULL                QoSInfo: 0x0
   IndirectID: 0x0
 RelayNextHop: 0.0.0.0           Interface: Vlanif10
     TunnelID: 0x0                   Flags:  D

Destination: 127.0.0.0/8                                                        
     Protocol: Direct           Process ID: 0                                   
   Preference: 0                      Cost: 0                                   
      NextHop: 127.0.0.1         Neighbour: 0.0.0.0                             
        State: Active NoAdv            Age: 3d01h20m39s                         
          Tag: 0                  Priority: high                                
        Label: NULL                QoSInfo: 0x0                                 
   IndirectID: 0x0                                                              
 RelayNextHop: 0.0.0.0           Interface: InLoopBack0                         
     TunnelID: 0x0                   Flags:  D                                  
                                                                                
Destination: 127.0.0.1/32                                                       
     Protocol: Direct           Process ID: 0                                   
   Preference: 0                      Cost: 0                                   
      NextHop: 127.0.0.1         Neighbour: 0.0.0.0                             
        State: Active NoAdv            Age: 3d01h20m39s                         
          Tag: 0                  Priority: high                                
        Label: NULL                QoSInfo: 0x0                                 
   IndirectID: 0x0                                                              
 RelayNextHop: 0.0.0.0           Interface: InLoopBack0                         
     TunnelID: 0x0                   Flags:  D

Table 7-209 Description of the display ip routing-table verbose command output

Item	Description
Route Flags	Flag of a route: R: indicates that the route is an iterated route. D: indicates that the route is delivered to the FIB table.
Destinations	Total number of destination networks or hosts.
Routes	Total number of active routes and inactive routes.
Destination	Address and mask length of the destination network or host.
Protocol	Routing protocol of a route.
Process ID	Routing protocol process ID of a route.
Preference	Preference of a route.
Cost	Cost of a route.
NextHop	Next-hop address of a route.
Neighbour	Neighbor address of a route.
State	Status of a route: Active: active route Invalid: invalid route Inactive: inactive route NoAdv: route that cannot be advertised Adv: route that can be advertised Del: route to be deleted Relied: route iterated to an outbound interface and a next hop or route iterated to a tunnel Stale: route that is marked Stale and used in GR
Age	Lifetime of a route.
Tag	Routing management tag. The value is an integer that ranges from 0 to 4294967295.
Priority	Convergence priority of route: low medium high critical
Label	Label allocated by MPLS.
QoSInfo	QoS information. The value 0x0 indicates that QoS information is empty.
IndirectID	ID of indirect next hop.
RelayNextHop	Iterated next-hop address.
Interface	Outbound interface.
TunnelID	Tunnel ID.
Flags	Route flags in the heading of the routing table.

display ip routing-table limit

Function

The display ip routing-table limit command displays the maximum number of routes and prefixes.

Format

display ip routing-table limit [ all-vpn-instance | vpn-instance vpn-instance-name ]

Only S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI, S6720LI, S6720S-LI, S5720LI, S5720S-LI, S2720EI, S1720X-E, S1720GW-E, S1720GWR-E, S1720GW, S1720GWR, S1720X support all-vpn-instance and vpn-instance vpn-instance-name parameter.

Parameters

Parameter	Description	Value
all-vpn-instance	Indicates all IPv4 VPN instances.	-
vpn-instance vpn-instance-name	Specifies the name of a IPv4 VPN instance.	The value must be an existing VPN instance name.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The command displays limits on the number of IPv4 routes and prefixes.

The display ip routing-table limit command displays limits on the number of IPv4 public routes and prefixes.
The display ip routing-table limit all-vpn-instance command displays the limit on the number of routes and prefixes of all IPv4 VPN instances.
The display ip routing-table limit vpn-instance vpn-instance-name command displays the limit on the number of routes and prefixes of a specified IPv4 VPN instance.

Example

# Display the limits on the number of IPv4 public routes and prefixes.

<HUAWEI> display ip routing-table limit
Public Instance:                                                                
Limit-Object Limit-Type     Upper-Limit  Warning    Current    Log-Interval     
Route         Default        -            -          9          5               
Prefix        Default        -            -          9          5

# Display limits on the numbers of routes and prefixes of all IPv4 VPN instances.

<HUAWEI> display ip routing-table limit all-vpn-instance
Limit-Object     Limit-Type    Upper-Limit     Warning     Current    Log-Interval
----------------------------------------------------------------------------------
VPN Instance Name: vpn1
Route            Simply-Alert   5000           -            4223      5
Prefix           Alert-Percent  1000           800          760       5
-----------------------------------------------------------------------------------
VPN Instance Name: vpn2
Route            Alert-Percent  2000           1000         823       5
Prefix           Default        -              -            760       5

# Display limits on the numbers of routes and prefixes of the IPv4 VPN instance named vpn1.

<HUAWEI> display ip routing-table limit vpn-instance vpn1
VPN Instance Name: vpn1
Limit-Object     Limit-Type      Upper-Limit    Warning    Current    Log-Interval
Route            Simply-Alert    5000           -          4223       5
Prefix           Alert-Percent   1000           800        760        5

Table 7-210 Description of the display ip routing-table limit command output

Item	Description
Limit-Object	Object whose total number is limited: Prefix Route
Limit-Type	Limit type for the routes and prefixes in the routing table: Simply-Alert: indicates that only alarms are generated when the number of routes or prefixes exceeds the upper limit. Alert-Percent: indicates the percentage of the alarm threshold of routes. Default: indicates that the number of routes or prefixes is not limited by default.
Upper-Limit	Upper limit of routes or prefixes in the current routing table.
Warning	Alarm threshold of routes or prefixes in the current routing table.
Current	Number of routes or prefixes in the current routing table.
Log-Interval	Frequency of displaying logs when the number of routes or prefixes in the current routing table exceeds the upper limit, in seconds. The default value is 5s.

display ip routing-table protocol

Function

The display ip routing-table protocol command displays routing information about a specified routing protocol.

Format

display ip routing-table [ vpn-instance vpn-instance-name ] protocol protocol [ inactive | verbose ]

Parameters

Parameter	Description	Value
vpn-instance-name	Specifies the name of a VPN instance of an enabled IPv4 address family.	The value must be an existing VPN instance name.
protocol	Displays routing information of a specified routing protocol.	The value may be bgp, direct, isis, ospf, rip, static, or unr. The specific value varies depending on the routing protocol supported by the device.
inactive	Displays brief information about inactive routes only.	-
verbose	Displays detailed information about active routes and inactive routes.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

If neither verbose nor inactive is specified, brief information about all the routes of each routing protocol is displayed.

Example

# Display brief information about all direct routes.

<HUAWEI> display ip routing-table protocol direct
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : Direct
         Destinations : 4        Routes : 4  

Direct routing table status : <Active>
         Destinations : 4        Routes : 4  

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

   10.137.216.0/23  Direct  0    0           D   10.137.217.210  Vlanif100
 10.137.217.210/32  Direct  0    0           D   127.0.0.1       Vlanif100
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0

Direct routing table status : <Inactive>
         Destinations : 0        Routes : 0

Table 7-211 Description of the display ip routing-table protocol command output

Item	Description
Route Flags	Flag of a route: R: indicates that the route is an iterated route. D: indicates that the route is delivered to the FIB table.
Public routing table	Contents of a public routing table.
Direct routing table status	Status of direct routes: Inactive: inactive routes in the routing table Active: active routes in the routing table
Destinations	Total number of destination addresses.
Routes	Total number of routes in the routing table.
Destination/Mask	Destination address or mask length.
Proto	Routing protocol of a route.
Pre	Routing protocol preference of a route.
Cost	Cost of a route.
Flags	Route flags in the heading of the routing table.
Nexthop	Next-hop address of a route.
Interface	Outbound interface of a route.

# Display all the direct routes of the VPN instance named vpn1.

<HUAWEI> display ip routing-table vpn-instance vpn1 protocol direct
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
vpn4 routing table : Direct
         Destinations : 2           Routes : 2

Direct routing table status : <Active>
         Destinations : 2           Routes : 2

Destination/Mask    Proto  Pre  Cost     Flags NextHop         Interface

       10.1.1.0/24  Direct 0    0          D  10.1.1.1         Vlanif30
       10.1.1.1/32  Direct 0    0           D  127.0.0.1       Vlanif30

Direct routing table status : <Inactive>
         Destinations : 0           Routes : 0

Table 7-212 Description of the display ip routing-table vpn-instance protocol command output

Item	Description
Active	Active routes.
Inactive	Inactive routes.

display ip routing-table statistics

Function

The display ip routing-table statistics command displays statistics about routes in an IPv4 routing table.

Format

display ip routing-table [ vpn-instance vpn-instance-name | all-vpn-instance ] statistics

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays statistics about routes in the routing table of a specified VPN instance. If neither vpn-instance vpn-instance-name nor all-vpn-instance is specified, statistics about routes in a public routing table are displayed.	The value must be an existing VPN instance name.
all-vpn-instance	Displays statistics about routes in the routing tables of all VPN instances. If neither vpn-instance vpn-instance-name nor all-vpn-instance is specified, statistics about routes in a public routing table are displayed.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Route statistics include:

Total number of routes that are added or deleted through routing protocols
Number of active or inactive routes that are labeled for deletion but are not deleted

Example

# Display statistics about routes in an IPv4 routing table.

<HUAWEI> display ip routing-table statistics
Summary Prefixes: 9
Proto   total   active  added      deleted     freed
        routes  routes  routes     routes      routes
DIRECT   6        6      42          36         36
STATIC   3        3      21          18         18
RIP      0        0       0           0          0
OSPF     0        0       0           0          0
IS-IS    0        0       0           0          0
BGP      0        0       0           0          0
UNR      0        0       0           0          0
Total    9        9      63          54         54

Table 7-213 Description of the display ip routing-table statistics command output

Item	Description
Summary Prefixes	Total number of prefixes in the current routing table.
Proto	Routing protocol type
total routes	Total number of routes that a routing protocol learns in the routing table, including active and inactive routes.
active routes	Number of active routes that a routing protocol learns in the routing table.
added routes	Number of active and inactive routes that are added to the routing table through a routing protocol.
deleted routes	Number of routes to be deleted from the routing table.
freed routes	Number of routes that are permanently deleted from the routing table.

display ip routing-table time-range

Function

The display ip routing-table time-range command displays information about routes generated in a specified time range in an IP routing table.

Format

display ip routing-table [ vpn-instance vpn-instance-name ] time-range min-age max-age [ verbose ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about routes generated in a specified time range in the IP routing table of the specified VPN instance. If you do not specify this parameter, the display ip routing-table time-range command displays information about routes generated in a specified time range in the public IP routing table.	The value must be an existing VPN instance name.
min-age	Specifies the end time of the period when routes are generated.	The value is in xxdxxhxxmxxs format. d indicates days. The value is an integer that ranges from 0 to 10000. h indicates hours. The value is an integer that ranges from 0 to 23. m indicates minutes. The value is an integer that ranges from 0 to 59. s indicates seconds. The value is an integer that ranges from 0 to 59. For example, you can enter 5d4h30m20s to specify 5 days, 4 hours, 30 minutes, and 20 seconds. NOTE: If the value of d is 10000, the values of h, m, and s can only be 0.
max-age	Specifies the start time of the period when routes are generated.	The value is in xxdxxhxxmxxs format. d indicates days. The value is an integer that ranges from 0 to 10000. h indicates hours. The value is an integer that ranges from 0 to 23. m indicates minutes. The value is an integer that ranges from 0 to 59. s indicates seconds. The value is an integer that ranges from 0 to 59. For example, you can enter 5d4h30m20s to specify 5 days, 4 hours, 30 minutes, and 20 seconds. NOTE: If the value of d is 10000, the values of h, m, and s can only be 0.
verbose	Displays detailed information about active and inactive routes. If you do not specify this parameter, the display ip routing-table time-range command displays only brief information about active routes.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

If route flapping occurs on a network, you can run the display ip routing-table time-range command and specify a small time range for the command. You can then find the flapping route rapidly and accelerate fault location.

Precautions

max-age must be larger than min-age. Otherwise, the display ip routing-table time-range command does not display any information.

If max-age is larger than min-age but no route was generated within this time range, the display ip routing-table time-range command displays only the table heading.

Example

# Display information about public network routes generated in the last 20 minutes.

<HUAWEI> display ip routing-table time-range 0 20m

Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 2        Routes : 2

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.3.3.3/32  Direct  0    0           D   127.0.0.1       LoopBack1
       10.4.4.0/24  Static  60   0           D   0.0.0.0         NULL0

Table 7-214 Description of the display ip routing-table time-range command output

Item	Description
Route Flags	Route flags: R: The route is an iterated route. D: The route is sent to the FIB table.
Routing Tables: Public	The routing table is a public routing table.
Destinations	Number of destination networks and hosts.
Routes	Number of routes.
Destination/Mask	Address and mask length of the destination network and host.
Proto	Protocol used to learn routes.
Pre	Route preference.
Cost	Route cost.
Flags	Route flags in the heading of the routing table.
NextHop	Next hop.
Interface	Outbound interface in a route with a reachable next hop.

# Display detailed information about public network routes generated in the last 20 minutes.

<HUAWEI> display ip routing-table time-range 0 20m verbose

Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 3        Routes : 3


Destination: 10.3.3.3/32
     Protocol: Direct           Process ID: 0
   Preference: 0                      Cost: 0
      NextHop: 127.0.0.1         Neighbour: 0.0.0.0
        State: Active Adv              Age: 00h14m06s
          Tag: 0                  Priority: high
        Label: NULL                QoSInfo: 0x0
   IndirectID: 0x0
 RelayNextHop: 0.0.0.0           Interface: LoopBack1
     TunnelID: 0x0                   Flags:  D

Destination: 10.4.4.0/24
     Protocol: Static           Process ID: 0
   Preference: 60                     Cost: 0
      NextHop: 0.0.0.0           Neighbour: 0.0.0.0
        State: Active Adv              Age: 00h01m38s
          Tag: 0                  Priority: medium
        Label: NULL                QoSInfo: 0x0
   IndirectID: 0x0
 RelayNextHop: 0.0.0.0           Interface: NULL0
     TunnelID: 0x0                   Flags:  D

Destination: 10.4.4.4/32
     Protocol: Static           Process ID: 0
   Preference: 60                     Cost: 0
      NextHop: 10.4.4.0          Neighbour: 0.0.0.0
        State: Invalid Adv Relied      Age: 00h01m38s
          Tag: 0                  Priority: medium
        Label: NULL                QoSInfo: 0x0
   IndirectID: 0x80000002
 RelayNextHop: 0.0.0.0           Interface: NULL0
     TunnelID: 0x0                   Flags: R

Table 7-215 Description of the display ip routing-table time-range verbose command output

Item	Description
Process ID	Process ID of the routing protocol.
Preference	Route preference.
Cost	Route cost.
NextHop	Next hop.
Neighbour	IP address of a neighbor. 0.0.0.0 indicates that the route is generated by a local device.
State	Route status: Active: an active route Invalid: an invalid route Inactive: an inactive route NoAdv: a route that cannot be advertised Adv: a route that can be advertised Del: a route to be deleted Relied: a route that is iterated to the next hop and outbound interface or a tunnel Stale: a route with the Stale flag and used in GR
Age	Time after the route is generated.
Tag	Administrative tag of the route. The value is an integer that ranges from 0 to 4294967295.
Priority	Convergence priority of the route: low: The convergence priority of a route is low. medium: The convergence priority of a route is medium. high: The convergence priority of a route is high. critical: The convergence priority of a route is critical.
Label	Label allocated by MPLS.
QoSInfo	QoS information. 0x0 indicates QoS information is empty.
IndirectID	ID of the indirect next hop.
RelayNextHop	Iterated next hop.
Interface	Iterated outbound interface.
Tunnel ID	Tunnel ID: The value 0x0 indicates that the route does not use a tunnel or the tunnel fails to be set up. If the value is not 0x0, the route is iterated to a tunnel.
Flags	Route flags in the heading of the routing table.

display ipv6 fib

Function

The display ipv6 fib command displays FIB entries on the device.

Format

display ipv6 fib [ slot-id ] statistics [ all ]

display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] statistics

display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] [ ipv6-address [ prefix-length ] ] [ verbose ]

display ipv6 fib [ slot-id ] [ vpn-instance vpn-instance-name ] verbose statistics

Parameters

Parameter	Description	Value
slot-id	Specifies the slot ID.	-
ipv6-address	Specifies the prefix of an IPv6 address.	The value is a 32-digit hexadecimal number, in the format X:X:X:X:X:X:X:X.
statistics	Displays the statistics of FIB entries.	-
all	Displays all FIB entries.	-
vpn-instance vpn-instance-name	Displays FIB entries of the specified VPN instance.	The value must be an existing VPN instance name.
prefix-length	Specifies the prefix length of an IPv6 address.	The value is an integer that ranges from 1 to 128.
verbose	Displays detailed information about FIB entries.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display ipv6 fib command to check IPv6 FIB entries on the device.

Example

# Display all FIB entries on the device.

<HUAWEI> display ipv6 fib
 IPv6 FIB Table:
 Total number of Routes : 1

Destination:  ::1                                     PrefixLength : 128
Nexthop    :  ::1                                     Flag         : HU
Interface  :  InLoopBack0                             Tunnel ID    : 0x0
TimeStamp  :  2008-11-03 13:47:52

Table 7-216 Description of the display ipv6 fib command output

Item	Description
Total number of Routes	Number of IPv6 routes.
Destination	Destination IPv6 address of a route.
PrefixLength	Prefix length of the destination IPv6 address.
NextHop	Next-hop router that forwards packets to the destination address.
Flag	Description of route characteristics using S/U/G/H/B/D: S: static U: Up G: gateway H: host B. blackhole D: dynamic
Tunnel ID	ID of the tunnel. If packets are forwarded to the next hop using MPLS forwarding, the tunnel ID of the packets cannot be 0. If packets are forwarded using IP forwarding, the tunnel ID of the packets is 0.
TimeStamp	Time taken to generate a route in the FIB table.
Interface	Outbound interface through which packets are forwarded.

display ipv6 routing-table

Function

The display ipv6 routing-table command displays information about an IPv6 routing table.

Format

display ipv6 routing-table [ vpn-instance vpn-instance-name ] [ verbose | brief ]

display ipv6 routing-table [ vpn-instance vpn-instance-name ] ipv6-address [ prefix-length ] [ longer-match ] [ verbose | brief ]

display ipv6 routing-table [ vpn-instance vpn-instance-name ] ipv6-address1 [ prefix-length1 ] ipv6-address2 prefix-length2 [ verbose | brief ]

display ipv6 routing-table [ vpn-instance vpn-instance-name ] acl { acl6-number | acl6-name } [ verbose | brief ]

display ipv6 routing-table [ vpn-instance vpn-instance-name ] ipv6-prefix ipv6-prefix-name [ verbose | brief ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies the name of a VPN instance of an enabled IPv6 address family.	The value must be an existing VPN instance name.
verbose	Displays detailed information about all the routes in the current routing table, including active and inactive routes.	-
brief	Displays brief information about active routes in the current routing table.	-
ipv6-address	Displays the routes with the specified IPv6 destination address.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.
prefix-length	Specifies the prefix length of an IPv6 destination address.	The value is an integer that ranges from 0 to 128.
longer-match	Displays the routes with the specified destination address and mask.	-
ipv6-address1	Specifies the start IPv6 address in an IP address range. ipv6-address1 and ipv6-address2 determine an IP address range. Only the routes in the IP address range are displayed.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.
ipv6-address2	Specifies the end IPv6 address in an IP address range. ipv6-address1 and ipv6-address2 determine an IP address range. Only the routes in the IP address range are displayed.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.
prefix-length1	Specifies the mask length of the start IPv6 address.	The value is an integer that ranges from 0 to 128.
prefix-length2	Specifies the mask length of the end IPv6 address.	The value is an integer that ranges from 0 to 128.
acl acl6-number	Displays the routes that match the ACL6 with the specified ACL number. If the specified ACL6 does not exist, information about all active routes is displayed.	The value is an integer that ranges from 2000 to 2999.
acl acl6-name	Displays the routes that match the ACL6 with the specified ACL name. If the specified ACL6 does not exist, information about all active routes is displayed.	The value is a string of 1 to 64 case-sensitive characters without spaces. The value must start with a letter.
ipv6-prefix ipv6-prefix-name	Displays the routes that match the specified IPv6 prefix list. If the specified IPv6 prefix list does not exist, information about all active routes is displayed.	The name is a string of 1 to 169 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

If the verbose keyword is not specified, the command output includes the destination address, prefix length, protocol type, preference, cost, next hop, outbound interface, tunnel ID, flag, and status of a route.

An iterated route is counted as one route regardless of how many outbound interfaces and next hops the route finds.

Example

# Display brief information about the current IPv6 routing table.

<HUAWEI> display ipv6 routing-table
Routing Table : Public
         Destinations : 4        Routes : 4

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FC00:0:0:112::                  PrefixLength : 64
 NextHop      : FC00:0:0:112::2                 Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif10                        Flags        : D

 Destination  : FC00:0:0:112::2                          PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif10                        Flags        : D

 Destination  : FE80::                          PrefixLength : 10
 NextHop      : ::                              Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

Table 7-217 Description of the display ipv6 routing-table command output

Item	Description
Routing Tables : Public	The routing table is a public routing table.
Destinations	Total number of destination networks or hosts.
Routes	Total number of routes.
Destination	IP address of the destination network or host of a route.
PrefixLength	Prefix length of a route.
NextHop	Next-hop IPv6 address of a route.
Preference	Preference of a route.
Cost	Cost of a route.
Protocol	Routing protocol of a route.
RelayNextHop	Iterated next-hop address.
TunnelID	Tunnel ID. The value 0x0 indicates that no tunnel is used or the tunnel fails to be established.
Interface	Outbound interface through which the next hop of a route can be reached.
Flags	Flag of a route: R: The route is an iterated route. D: The route is delivered to the FIB table.

# Display detailed information about the IPv6 routing table.

<HUAWEI> display ipv6 routing-table verbose

Routing Table : Public
         Destinations : 2        Routes : 2

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active NoAdv                    Cost         : 0
 Entry ID     : 1                               EntryFlags   : 0x80010050
 Reference Cnt: 1                               Tag          : 0
 Priority     : high                            Age          : 84410sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FC00:0:0:1::1                   PrefixLength : 128
 NextHop      : FC00:0:0:2::2                   Preference   : 60
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Static
 State        : Active Adv Relied               Cost         : 0
 Entry ID     : 2                               EntryFlags   : 0x80020140
 Reference Cnt: 1                               Tag          : 0
 Priority     : high                            Age          : 79036sec
 IndirectID   : 0x80000001
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : RD

Table 7-218 Description of the display ipv6 routing-table verbose command output

Item	Description
Neighbour	IPv6 address of a neighbor interface.
ProcessID	Routing protocol process ID of a route.
Label	Label carried in a route.
State	Status of a route: Active: active route Invalid: invalid route Inactive: inactive route NoAdv: route that cannot be advertised Adv: route that can be advertised Del: route to be deleted Relied: route iterated to an outbound interface and a next hop or route iterated to a tunnel Stale: route that is marked Stale and used in GR
Entry ID	ID of a routing entry in the routing table.
EntryFlags	Flag of a routing entry.
Reference Cnt	Number of times a route is referenced.
Tag	Routing management tag. The value is an integer that ranges from 0 to 4294967295.
Priority	Convergence priority of a route: low medium high critical
IndirectID	ID of indirect next hop.
Age	Time a route is generated.

# Display brief information about the active routes that match ACL6 2000.

<HUAWEI> display ipv6 routing-table acl 2000
Routes Matched by Access list  2000  :
Summary Count : 2

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FC00:0:0:111::                  PrefixLength : 64
 NextHop      : FC00:0:0:111::2                 Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif10                        Flags        : D

# Display brief information about the routes with the specified IPv6 destination address.

<HUAWEI> display ipv6 routing-table fc00:0:0:111::1 64
Routing Table :Public
Summary Count : 1

 Destination  : FC00:0:0:111::                  PrefixLength : 64
 NextHop      : FC00:0:0:111::2                 Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif10                        Flags        : D

# Display the routes within the specified IPv6 address range.

<HUAWEI> display ipv6 routing-table fc00:0:0:111::1 64 fc00:0:0:111::2 128
Routing Table :
Summary Count : 2

 Destination  : FC00:0:0:111::                  PrefixLength : 64
 NextHop      : FC00:0:0:111::2                 Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif10                        Flags        : D

 Destination  : FC00:0:0:111::2                 PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif10                        Flags        : D

# Display brief information about the active routes that match IPv6 prefix list abc2.

<HUAWEI> display ipv6 routing-table ipv6-prefix abc2
Routes Matched by Prefix-list abc2 :
Summary Count: 3

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FC00:0:0:112::                  PrefixLength : 64
 NextHop      : FC00:0:0:112::1                 Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif20                        Flags        : D

 Destination  : FC00:0:0:112::1                 PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : Vlanif20                        Flags        : D

display ipv6 routing-table limit

Function

The display ipv6 routing-table limit command displays limits on the numbers of routes and prefixes.

Format

display ipv6 routing-table limit [ all-vpn-instance | vpn-instance vpn-instance-name ]

Parameters

Parameter	Description	Value
all-vpn-instance	Indicates all IPv6 VPN instances.	-
vpn-instance vpn-instance-name	Specifies the name of an IPv6 VPN instance.	The value must be an existing VPN instance name.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The command displays limits on the number of IPv6 routes and prefixes.

The display ipv6 routing-table limit command displays limits on the number of IPv6 public routes and prefixes.
The display ipv6 routing-table limit all-vpn-instance command displays the limit on the number of routes and prefixes of all IPv6 VPN instances.
The display ipv6 routing-table limit vpn-instance vpn-instance-name command displays the limit on the number of routes and prefixes of a specified IPv6 VPN instance.

Example

# Display the limits on the number of IPv6 public routes and prefixes.

<HUAWEI> display ipv6 routing-table limit
Public Instance:                                                                
Limit-Object Limit-Type     Upper-Limit  Warning    Current    Log-Interval     
Route         Default        -            -          1          5               
Prefix        Default        -            -          1          5

Table 7-219 Description of the display ipv6 routing-table limit command output

Item	Description
Limit-Object	Indicates the object whose total number is limited: Prefix Route
Limit-Type	Indicates the limit mode for the routes and prefixes in the current routing table: Simply-Alert: indicates that only alarms are generated after the number of routes or prefixes exceeds the upper limit. Alert-Percent: indicates the percentage of the alarm threshold of routes. Default: indicates that the number of routes or prefixes is not limited by default.
Upper-Limit	Indicates the upper limit of routes or prefixes in the current routing table.
Warning	Indicates the alarm threshold of routes or prefixes in the current routing table.
Current	Indicates the number of routes or prefixes in the current routing table.
Log-Interval	Indicates the frequency of displaying logs when the number of routes or prefixes in the current routing table exceeds the upper limit, in seconds.

display ipv6 routing-table protocol

Function

The display ipv6 routing-table protocol command displays routing information about a specified IPv6 routing protocol.

Format

display ipv6 routing-table [ vpn-instance vpn-instance-name ] protocol protocol [ inactive | verbose | brief ]

Parameters

Parameter	Description	Value
vpn-instance-name	Specifies the name of a VPN instance of an enabled IPv6 address family.	The value must be an existing VPN instance name.
protocol	Displays routing information of a specified routing protocol.	The value may be bgp, direct, isis, ospfv3, ripng, static, or unr. The specific value varies depending on the routing protocol supported by the device.
inactive	Displays information about inactive routes. If this parameter is not specified, information about all active and inactive routes is displayed.	-
verbose	Displays detailed information about active and inactive routes. If this keyword is not specified, only brief information about active routes is displayed.	-
brief	Displays brief information about active and inactive routes.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display ipv6 routing-table protocol command to check routing information about a specified IPv6 routing protocol.

Example

# Display brief information about all IPv6 direct routes.

<HUAWEI> display ipv6 routing-table protocol direct

Public Routing Table : Direct
Summary Count : 2

Direct Routing Table's Status : < Active >
Summary Count : 2

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FE80::                          PrefixLength : 10
 NextHop      : ::                              Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

Direct Routing Table's Status : < Inactive >
Summary Count : 0

Table 7-220 Description of the display ipv6 routing-table protocol command output

Item	Description
Public Routing Table	Contents of a public routing table: Direct: direct IPv6 route Static: static IPv6 route bgp: BGP4+ route ripng: RIPng route isis: IS-IS IPv6 route ospfv3: OSPFv3 route unr: user network route
Summary Count	Number of prefixes of routes.
Direct Routing Table's Status	Status of direct routes: active: information about active routes inactive: information about inactive routes
Destination	IP address of the destination network or host of a route.
PrefixLength	Prefix length of a route.
NextHop	Next-hop address of a route.
Preference	Routing protocol preference of a route.
Cost	Cost of a route.
Protocol	Routing protocol that learns a route.
RelayNextHop	Iterated next-hop address.
TunnelID	Tunnel ID. The value 0x0 indicates that no tunnel is used or the tunnel fails to be established.
Interface	Outbound interface through which the next hop of a route can be reached.
Flags	Flag of a route: R: The route is an iterated route. D: The route is delivered to the FIB table.

display ipv6 routing-table statistics

Function

The display ipv6 routing-table statistics command displays statistics about routes in an IPv6 routing table.

Format

display ipv6 routing-table [ vpn-instance vpn-instance-name | all-vpn-instance ] statistics

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays statistics about routes in the routing table of a specified VPN instance. If neither vpn-instance-name nor all-vpn-instance is specified, statistics about routes in a public routing table are displayed.	The value must be an existing VPN instance name.
all-vpn-instance	Displays statistics about routes in the routing tables of all VPN instances. If neither vpn-instance-name nor all-vpn-instance is specified, statistics about routes in a public routing table are displayed.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Route statistics include the total number of routes, number of added routes, and number of deleted routes.

Example

# Display statistics about routes in an IPv6 routing table.

<HUAWEI> display ipv6 routing-table statistics

Summary Prefixes : 0
Protocol   route       active      added       deleted     freed
DIRECT     0           0           0           0           0          
STATIC     0           0           0           0           0          
RIPng      0           0           0           0           0          
OSPFv3     0           0           0           0           0          
IS-IS      0           0           0           0           0          
BGP        0           0           0           0           0          
UNR        0           0           0           0           0          
Total      0           0           0           0           0

Table 7-221 Description of the display ipv6 routing-table statistics command output

Item	Description
Summary Prefixes	Total number of prefixes in the current routing table.
Protocol	Routing protocol type:
route	Total number of routes that a routing protocol learns in the routing table, including active and inactive routes.
active	Number of active routes of a routing protocol in the routing table.
added	Number of active and inactive routes that are added to the routing table through a routing protocol.
deleted	Number of routes that are deleted from the routing table.
freed	Number of routes that are permanently deleted from the routing table.

display ipv6 routing-table time-range

Function

The display ipv6 routing-table time-range command displays information about routes generated in a specified time range in an IPv6 routing table.

Format

display ipv6 routing-table [ vpn-instance vpn-instance-name ] time-range min-age max-age [ verbose | brief ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about routes generated in a specified time range in the IPv6 routing table of the specified VPN instance. If this parameter is not specified, the display ipv6 routing-table time-range command displays information about routes generated in a specified time range in the public IPv6 routing table.	The value must be an existing VPN instance name.
min-age	Specifies the end time of the period when routes are generated.	The value is in xxdxxhxxmxxs format. d indicates days. The value is an integer that ranges from 0 to 10000. h indicates hours. The value is an integer that ranges from 0 to 23. m indicates minutes. The value is an integer that ranges from 0 to 59. s indicates seconds. The value is an integer that ranges from 0 to 59. For example, enter 5d4h30m20s to specify 5 days, 4 hours, 30 minutes, and 20 seconds. NOTE: If the value of d is 10000, the values of h, m, and s can only be 0.
max-age	Specifies the start time of the period when routes are generated.	The value is in xxdxxhxxmxxs format. d indicates days. The value is an integer that ranges from 0 to 10000. h indicates hours. The value is an integer that ranges from 0 to 23. m indicates minutes. The value is an integer that ranges from 0 to 59. s indicates seconds. The value is an integer that ranges from 0 to 59. For example, enter 5d4h30m20s to specify 5 days, 4 hours, 30 minutes, and 20 seconds. NOTE: If the value of d is 10000, the values of h, m, and s can only be 0.
verbose	Displays detailed information about active and inactive routes. If this parameter is not specified, the display ipv6 routing-table time-range command displays only brief information about active routes.	-
brief	Displays brief information about active and inactive routes.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

If route flapping occurs on a network, to find the flapping route rapidly and accelerate fault location, run the display ipv6 routing-table time-range command and specify a small time range.

Precautions

max-age must be larger than min-age. Otherwise, the display ipv6 routing-table time-range command does not display any information.

If max-age is larger than min-age but no route is generated within this time range, the display ipv6 routing-table time-range command displays only the table heading.

Example

# Display information about public network IPv6 routes generated in the last 2 hours, 20 minutes, and 10 seconds.

<Switch> display ipv6 routing-table time-range 0 2h20m10s

Routing Table : Public
         Destinations : 4        Routes : 4

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FC00:0:0:1::1                   PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : LoopBack2                       Flags        : D

 Destination  : FC00:0:0:1::2                   PrefixLength : 128
 NextHop      : ::                              Preference   : 60
 Cost         : 0                               Protocol     : Static
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

 Destination  : FE80::                          PrefixLength : 10
 NextHop      : ::                              Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

Table 7-222 Description of the display ipv6 routing-table time-range command output

Item	Description
Routing Tables: Public	The routing table is a public routing table.
Destinations	Number of destination networks or hosts.
Routes	Number of routes.
Destination	IP addresses of the destination network or host.
PrefixLength	Prefix length of a route.
NextHop	Next-hop IPv6 address.
Preference	Route preference.
Cost	Route cost.
Protocol	Name of the routing protocol.
RelayNextHop	Iterated next hop.
TunnelID	Tunnel ID: The value 0x0 indicates that the route does not use a tunnel or the tunnel fails to be set up. If the value is not 0x0, the route is iterated to a tunnel.
Interface	Outbound interface through which the next hop of a route can be reached.
Flags	Route flag: R: The route is an iterated route. D: The route is delivered to the FIB table.

# Display detailed information about public network routes generated in the last 20 minutes.

<Switch> display ipv6 routing-table time-range 0 20m verbose

Routing Table : Public
         Destinations : 4        Routes : 5

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active NoAdv                    Cost         : 0
 Entry ID     : 262551588                       EntryFlags   : 0x80010050
 Reference Cnt: 2                               Tag          : 0
 Priority     : high                            Age          : 7694sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : FC00:0:0:1::1                   PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active Adv                      Cost         : 0
 Entry ID     : 262552100                       EntryFlags   : 0x80010040
 Reference Cnt: 2                               Tag          : 0
 Priority     : high                            Age          : 101sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : LoopBack2                       Flags        : D

 Destination  : FC00:0:0:1::1                   PrefixLength : 128
 NextHop      : FC00:0:0:1::2                   Preference   : 60
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Static
 State        : Inactive Adv Relied             Cost         : 0
 Entry ID     : 262551716                       EntryFlags   : 0x20140
 Reference Cnt: 2                               Tag          : 0
 Priority     : medium                          Age          : 7668sec
 IndirectID   : 0x80000001
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : R

 Destination  : FC00:0:0:1::2                   PrefixLength : 128
 NextHop      : ::                              Preference   : 60
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Static
 State        : Active Adv                      Cost         : 0
 Entry ID     : 262551844                       EntryFlags   : 0x80000040
 Reference Cnt: 2                               Tag          : 0
 Priority     : medium                          Age          : 7670sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

 Destination  : FE80::                          PrefixLength : 10
 NextHop      : ::                              Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active NoAdv                    Cost         : 0
 Entry ID     : 262551972                       EntryFlags   : 0x80010010
 Reference Cnt: 2                               Tag          : 0
 Priority     : high                            Age          : 104sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

Table 7-223 Description of the display ipv6 routing-table time-range verbose command output

Item	Description
Neighbour	IP address of a neighboring interface. :: indicates that the route is generated by a local device.
ProcessID	Process ID of the routing protocol.
Label	Label carried in a route.
State	Status of the route: Active: an active route Invalid: an invalid route Inactive: an inactive route NoAdv: a route that cannot be advertised Adv: a route that can be advertised Del: a route to be deleted Relied: a route that is iterated to the next hop and outbound interface or a tunnel Stale: a route with the Stale flag and used in GR
Entry ID	ID of a route in the routing table.
EntryFlags	Flag of a route.
Reference Cnt	Number of times the route is referenced.
Tag	Administrative tag of the route. The value is an integer that ranges from 0 to 4294967295.
Priority	Convergence priority of the route: low medium high critical
IndirectID	ID of the indirect next hop.
Age	Time when the route is generated.

display rm bfd-session

Function

The display rm bfd-session command displays the BFD session configuration in routing management (RM).

Product	Support
S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI	Supported
S6720LI, S6720S-LI, S5720LI, S5720S-LI, S5710-X-LI, S5700LI, S5700S-LI, S2750EI, S2720EI, S1720GFR, S1720GW-E, S1720GWR-E, S1720X-E, S1720GW, S1720GWR, S1720X	Not supported

Format

display rm bfd-session [ vpn-instance vpn-instance-name ] [ destination destination-address ] [ source source-address ] [ interface interface-type interface-number ] [ protocol { bgp | isis-l1 | isis-l2 | isis-l1l2 | ospf | rip | pim } ]

display rm bfd-session all

Parameters

Parameter	Description	Value
all	Displays all the BFD session configurations in RM, including the BFD session configurations of the public and private networks. If all is not specified, only the BFD session configuration on the public network is displayed.	-
vpn-instance vpn-instance-name	Displays the configurations of BFD sessions of the specified VPN instance in RM.	The value must be an existing VPN instance name.
destination destination-address	Displays the configurations of BFD sessions with the specified destination address in RM.	The value is in dotted decimal notation.
source source-address	Displays the configurations of BFD sessions with the specified source address in RM.	The value is in dotted decimal notation.
interface interface-type interface-number	Displays the configurations of BFD sessions with the specified outbound interface type and number in RM.	-
protocol	Displays the configurations of BFD sessions of the specified routing protocol in RM: bgp: BGP isis-l1: IS-IS Level-1 isis-l2: IS-IS Level-2 isis-l1l2: IS-IS Level-1-2 ospf: OSPF rip: RIP pim: PIM	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can use this command to view the configuration of BFD sessions dynamically created by routing protocols. The command output includes the global BFD status, number of BFD sessions, and BFD session configuration, such as VPN instance, destination address, source address, interface, and status.

Example

# Display the BFD configuration in RM.

<HUAWEI> display rm bfd-session vpn-instance vrf1 destination 10.8.1.2 source 10.8.1.1 interface Vlanif10
BFD Global Status: ON
BFD Session Total Number: 1

BFD Session: 1
  Interface: Vlanif10    VRF Name: vrf1
  Destination     Source          Session-State Create-State
  10.8.1.2        10.8.1.1        Up            Established
  Route-Protocol  Rx-Interval(ms) Tx-Interval(ms) Multiplier
  BGP             1000            1000            5

Table 7-224 Description of the display rm bfd-session command output

Item	Description
BFD Global Status	Global BFD status: ON: BFD is enabled globally. OFF: BFD is disabled globally. To set the global BFD status, run the bfd command.
BFD Session Total Number	Total number of BFD sessions.
BFD Session	Number of the BFD session.
Interface	Local physical interface bound to the BFD session.
VRF Name	Name of a VPN instance to which the BFD session is bound to.
Destination	Peer IP address bound to the BFD session.
Source	Source IP address bound to the BFD session.
Session-State	Status of the BFD session: AdminDown: indicates that the BFD session is in AdminDown state when the shutdown (BFD session view) command is run. Down: indicates that the BFD session in Down state. Init: indicates that the BFD session is in Init state. Up: indicates that the BFD session is in Up state.
Create-State	BFD session setup status in RM: Creating: indicates that the routing protocol notifies RM of the session, but RM does not instruct BFD to set up a session. Established: indicates that RM notifies BFD to set up a BFD session. You can view the Session-State field to check whether a BFD session is set up.
Route-Protocol	Routing protocol enabled with BFD: BGP IS-IS Level-1 IS-IS Level-2 IS-IS Level-1-2 OSPF RIP PIM
Rx-Interval(ms)	Configured receiving interval, in milliseconds.
Tx-Interval(ms)	Configured sending interval, in milliseconds.
Multiplier	Configured local detection multiplier.

Related Topics

bfd

bfd all-interfaces (RIP)

bfd all-interfaces (IS-IS)

bfd all-interfaces (OSPF)

shutdown (BFD session view)

display rm interface

Function

The display rm interface command displays routing management (RM) information on an interface.

Format

display rm interface [ interface-type interface-number ]

display rm interface [ vpn-instance vpn-instance-name ] [ ip-address ip-address ]

Parameters

Parameter	Description	Value
interface-type interface-number	Displays RM information on the specified interface.	-
vpn-instance vpn-instance-name	Displays RM information on the interface of the specified VPN instance.	The value must be an existing VPN instance name.
ip-address ip-address	Displays RM information on the interface with the specified destination address.	The value is in dotted decimal notation.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can use this command to view IPv4 RM information on an interface, including information about physical and logical interfaces of the interface. This information helps locate routing problems.

Example

# Display RM information on interfaces.

<HUAWEI> display rm interface

Name: InLoopBack0                                                               
Physical IF Info:                                                               
 IfnetIndex: 0x1                                                                
 State: UP LOOP MULT                                                            
 Slot: 0(Logic Slot: 9)                                                         
 IntType: 26, PriLog: 1, MTU: 1500, Reference Count: 7                           
 Bandwidth: 0, 0                                                                
 Baudrate: 0, 0                                                                 
 Delay: 0, Reliability: 0, Load: 0                                              

 LDP-ISIS sync capability: disabled                                             
 LDP-OSPF sync capability: disabled                                             
 InstanceID: 0, Instance Name: Public                                           
 Age: 75455sec                                                                  
Logical IF Info:                                                                
 IfnetIndex: 0x1, PhyIndex: 1 Logical Index : 1,                                
 Dest: 127.0.0.1, Mask: 255.0.0.0                                               
 State: UP LOOP PRM MULT , Reference Count 6                                    
 Age: 75455sec                                                                  
                                                                                
Name: NULL0                                                                     
Physical IF Info:                                                               
 IfnetIndex: 0x2                                                                
 State: UP NBMA MULT                                                            
 Slot: 0(Logic Slot: 9)                                                         
 IntType: 27, PriLog: 2, MTU: 1500, Reference Count 1                           
 Bandwidth: 0, 0                                                                
 Baudrate: 0, 0                                                                 
 Delay: 0, Reliability: 0, Load: 0                                              

 LDP-ISIS sync capability: disabled                                             
 LDP-OSPF sync capability: disabled                                             
 InstanceID: 0, Instance Name: Public                                           
 Age: 75455sec                                                                  
Logical IF Info:                                                                
 IfnetIndex: 0x2, PhyIndex: 2 Logical Index : 2,                                
 Dest: 0.0.0.0, Mask: 255.255.255.255                                           
 State: UP PRM NBMA MULT , Reference Count: 0                                    
 Age: 75456sec                                                                  
                                                                                
Name: MEth0/0/1                                                                  
Physical IF Info:                                                               
 IfnetIndex: 0x4                                                                
 State: UP BCA MULT OSI                                                         
 Hardware Address: 0018-1111-2123                                               
 Slot: 0(Logic Slot: 9)                                                         
 IntType: 1, PriLog: 6, MTU: 1500, Reference Count: 4                            
 Bandwidth: 0, 0                                                                
 Baudrate: 0, 0                                                                 
 Delay: 0, Reliability: 0, Load: 0                                              

 LDP-ISIS sync capability: disabled                                             
 LDP-OSPF sync capability: disabled                                             
 InstanceID: 0, Instance Name: Public                                           
 Age: 75423sec                                                                  
Logical IF Info:                                                                
 IfnetIndex: 0x4, PhyIndex: 3 Logical Index : 6,                                
 Dest: 10.137.217.207, Mask: 255.255.254.0                                      
 State: UP PRM BCA MULT , Reference Count: 3                                     
 Age: 75447sec

# Display RM information on VLANIF100.

<HUAWEI> display rm interface vlanif 100

Name: vlanif100
Physical IF Info:
 IfnetIndex: 0x6
 State: DOWN P2P MULT
 Slot: 0(Logic Slot: 1)
 IntType: 3, PriLog: 0, MTU: 1500, Reference Count: 1
 Bandwidth: 0, 64000
 Baudrate: 0, 64000
 Delay: 0, Reliability: 0, Load: 0
 LDP-ISIS sync capability: disabled
 LDP-OSPF sync capability: disabled
 InstanceID: 0, Instance Name: Public
 Age: 1236sec

Table 7-225 Description of the display rm interface command output

Item	Description
Name	Name of the interface.
Physical IF Info	Physical interface information.
IfnetIndex	Network segment index of the interface.
State	Current interface status.
Hardware Address	MAC address of the interface.
Slot	Slot ID of the interface.
IntType	Type of the interface.
PriLog	Index of the primary logical interface.
MTU	Maximum transmission unit (MTU) of the interface.
Reference Count	Number of times the interface is referenced.
Bandwidth	Bandwidth of the interface.
Baudrate	Baud rate of the interface.
Delay	Link delay.
Reliability	Link reliability.
Load	Link load.
LDP-ISIS sync capability	Whether synchronization between LDP and IS-IS is enabled: enabled: indicates that synchronization is enabled. disabled: indicates that synchronization is disabled.
LDP-OSPF sync capability	Whether synchronization between LDP and OSPF is enabled: enabled: indicates that synchronization is enabled. disabled: indicates that synchronization is disabled.
InstanceID	Instance ID.
Instance Name	Instance name.
Logical IF Info	Logical interface information.
PhyIndex	Physical interface index.
Logical Index	Logical interface index.
Dest	Destination address.
Mask	Mask of the destination address.
Age	Lifetime of the displayed information.

display rm ipv6 bfd-session

Function

The display rm ipv6 bfd-session command displays the configurations of BFD sessions in Route Management (RM).

Product	Support
S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI	Supported
S6720LI, S6720S-LI, S5720LI, S5720S-LI, S5710-X-LI, S5700LI, S5700S-LI, S2750EI, S2720EI, S1720GFR, S1720GW-E, S1720GWR-E, S1720X-E, S1720GW, S1720GWR, S1720X	Not supported

Format

display rm ipv6 bfd-session [ all | [ [ vpn-instance vpn-instance-name ] [ destination destination-address ] [ source source-address ] [ interface interface-type interface-number ] [ protocol { bgp | isis-l1 | isis-l2 | isis-l1l2 | ospfv3 | pim } ] ] ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies the name of a VPN instance.	The value must be an existing VPN instance name.
destination destination-address	Specifies the remote destination address.	-
source source-address	Specifies the local source address.	-
interface interface-type interface-number	Specifies the type and number of an outbound interface.	-
protocol	Indicates a routing protocol. bgp: indicates the Border Gateway Protocol (BGP). isis-l1: indicates IS-IS Level-1. isis-l2: indicates IS-IS Level-2. Isis-l1l2: indicates IS-IS Level-1-2. ospfv3: indicates the Open Shortest Path First (OSPF) version 3 protocol. pim: indicates the Protocol Independent Multicast (PIM) protocol.	-
all	Displays all the configurations of BFD sessions in RM, including the BFD sessions of the public network and VPN. If all is not specified, only the configurations of BFD sessions in the public network are displayed.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can use the command to view the BFD sessions that are dynamically created by the routing protocol. The configurations include the global status of BFD, number of BFD sessions, and VPN instance, destination address, source address, interface, and session status of each BFD session. To modify the parameters of a BFD session, refer to the bfd all-interfaces, ospfv3 bfd, isis ipv6 bfd, and peer bfd.

Example

# Display the configurations of BFD sessions in RM.

<HUAWEI> display rm ipv6 bfd-session vpn-instance a destination fc00:0:0::1 source fc00:0:0::2 interface GigabitEthernet0/0/1

BFD Global Status: ON
RM IPv6 BFD Session Total Number: 1
Destination: fc00:0:0::1
Source     : fc00:0:0::2
  Session-State      Local-Discr      Interface             VPN-Name   
  Up                 8192             GigabitEthernet0/0/1  a
  Route-Protocol     Rx-Interval(ms)  Tx-Interval(ms)       Multiplier
  BGP                1000             1000                  7

Table 7-226 Description of the display rm ipv6 bfd-session command output

Item	Description
BFD Global Status	Global status of BFD: On: indicates that BFD is enabled globally. Off: indicates that BFD is disabled globally.
RM IPv6 BFD Session Total Number	Total number of BFD sessions.
Destination	Destination IP address bound to the BFD session.
Source	Source IP address bound to the BFD session.
Session-State	Current status of a BFD session: AdmDown: If the shutdown (BFD session view) command is used, the BFD session enters the AdmDown state. Down: the BFD session is in the Down state. Init: the BFD session is in the Init state. Up: the BFD session is in the Up state.
Local-Discr	Local discriminator of the BFD session. If the value is 0, it indicates that the RM is notified of the need to set up of a BFD session, but the RM has not instructed BFD to set up the session. If the value is not 0, it indicates that RM has instructed BFD to set up a BFD session. If you need to learn the establishment of the BFD session, you can view the Session-State.
Interface	Local physical interface bound to the BFD session.
Route-Protocol	Routing protocol enabled with BFD: BGP IS-IS Level-1 IS-IS Level-2 IS-IS Level-1-2 OSPFv3 PIM
Rx-Interval (ms)	Configured receiving interval in milliseconds.
Tx-Interval (ms)	Configured sending interval in milliseconds.
Multiplier	Configured local detection multiplier.
VPN-Name	Name of the VPN instance.

display rm ipv6 interface

Function

The display rm ipv6 interface command displays IPv6 routing management (RM) information on an interface.

Format

display rm ipv6 interface [ interface-type interface-number ]

display rm ipv6 interface [ vpn-instance vpn-instance-name ] [ ipv6-address ipv6-address ]

Parameters

Parameter	Description	Value
interface-type interface-number	Displays IPv6 RM information on the specified interface.	-
vpn-instance vpn-instance-name	Displays IPv6 RM information in a specified VPN instance.	The value must be an existing VPN instance name.
ipv6-address ipv6-address	Displays IPv6 RM information with the specified destination IPv6 address.	The value is a 32-digit hexadecimal number, in the X:X:X:X:X:X:X:X format.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can use this command to view IPv6 RM information on an interface, including information about physical and logical interfaces of the interface. This information helps locate routing problems.

Example

# Display IPv6 RM information on all interfaces.

<HUAWEI> display rm ipv6 interface

Name: InLoopBack0
Physical IF Info:
 IfnetIndex: 0x1
 State: UP LOOP MULT
 Slot: 0(Logic Slot: 0)
 IntType: 26, PriLog: 1, MTU: 1500, Ref: 1
 Bandwidth: 0, 0
 Baudrate: 0, 0
 Delay: 0, Reliability: 0, Load: 0
 Age: 1635sec

Logical IF Info:
 IfnetIndex: 0x1, PhyIndex: 1, LogiIndex: 1
 Dest: ::1, Mask: 128
 State: UP LOOP PRM MULT , Ref 1
 Age: 1635sec

Name: NULL0
Physical IF Info:
 IfnetIndex: 0x2
 State: UP NBMA MULT
 Slot: 0(Logic Slot: 0)
 IntType: 27, PriLog: 2, MTU: 1500, Ref: 0
 Bandwidth: 0, 0
 Baudrate: 0, 0
 Delay: 0, Reliability: 0, Load: 0
 Age: 1635sec

Logical IF Info:
 IfnetIndex: 0x2, PhyIndex: 2, LogiIndex: 2
 Dest: ::, Mask: 128
 State: UP PRM NBMA MULT , Ref: 0
 Age: 1635sec

Table 7-227 Description of the display rm ipv6 interface command output

Item	Description
Name	Name of an interface.
Physical IF Info	Physical interface information.
IfnetIndex	Network segment index of the interface.
State	Interface status.
IntType	Interface type.
Slot	Slot ID.
PriLog	Index of the primary logical interface.
MTU	Maximum transmission unit (MTU) of the interface.
Ref	Number of times the interface is referenced.
Bandwidth	Bandwidth of the interface.
Baudrate	Baud rate of the interface.
Delay	Link delay.
Reliability	Link reliability.
Load	Link load.
Age	Lifetime of the displayed information.
Logical IF Info	Logical interface information.
PhyIndex	Physical index.
LogiIndex	Logical index.
Dest	Destination IPv6 address.
Mask	Prefix length of the destination IPv6 address.

display router id

Function

The display router id command displays the configured router ID.

Format

display router id [ vpn-instance vpn-instance-name ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays the configured router ID of the specified VPN instance. If this parameter is not specified, the configured router ID of the public network is displayed.	The value must be an existing VPN instance name.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Some dynamic routing protocols require a router ID to uniquely identify a device. If no router ID is specified when these routing protocols are enabled, the system router ID is used by default. You can run the display router id command to check the system router ID.

Example

# Display the configured router ID.

<HUAWEI> display router id

RouterID:10.1.1.1

Related Topics

router id

display route resource

Function

The display route resource command displays the total number of IPv4 and IPv6 route prefixes in the IP routing table on the device.

Format

display route resource

Parameters

None

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The display route resource command displays the total number of IPv4 and IPv6 route prefixes in the IP routing table on the device.

Example

# Display the total number of IPv4 and IPv6 route prefixes in the IP routing table on the device.

<HUAWEI> display route resource

 Total number of IPv4 Prefixes: 16
 Total number of IPv6 Prefixes: 13

Table 7-228 Description of the display route resource command output

Item	Description
Total number of IPv4 Prefixes	Current number of IPv4 route prefixes.
Total number of IPv6 Prefixes	Current number of IPv6 route prefixes.

display snmp-agent trap feature-name l3mb all

Function

The display snmp-agent trap feature-name l3mb all command displays the status of all the traps related to the L3MB module.

Format

display snmp-agent trap feature-name l3mb all

Parameters

None

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display snmp-agent trap feature-name l3mb all command to view the status of all the traps related to the L3MB module.

You can run the snmp-agent trap enable feature-name l3mb command to change the status of the traps related to the L3MB module.

Example

# Display the status of all traps related to the L3MB module.

<HUAWEI> display snmp-agent trap feature-name l3mb all
------------------------------------------------------------------------------  
Feature name: L3MB                                                              
Trap number : 6                                                                 
------------------------------------------------------------------------------  
Trap name                       Default switch status   Current switch status   
hwBoardL3FwdResLack             on                      on                      
hwBoardL3FwdResLackResume       on                      on                      
hwBoardL3ACLResLack             on                      on
hwBoardServiceFailed            on                      on
hwBoardIPv6ACLResLack           on                      on
hwFwdEntryConflict              on                      on                      
hwFwdEntryConflictResume        on                      on
hwBoardL3NDResLack              on                      on

Table 7-229 Description of the display snmp-agent trap feature-name l3mb all command output

Item	Description
Feature name	Name of the module to which a trap belongs.
Trap number	Number of traps.
Trap name	Name of a trap of the L3MB module: hwBoardL3FwdResLack: The Layer 3 resource usage reaches or exceeds the upper threshold. hwBoardL3FwdResLackResume: The Layer 3 resource usage falls below the lower threshold. hwBoardL3ACLResLack: The Layer 3 service is abnormal because ACL resources are insufficient. hwBoardServiceFailed: The switch does not support this trap. hwBoardIPv6ACLResLack: The IPv6 service is abnormal because ACL resources are insufficient. hwFwdEntryConflict: The switch detected an anomaly when periodically checking l3-forward-entries. hwFwdEntryConflictResume: The switch detected that l3-forward-entries return to normal. hwBoardL3NDResLack: ND entries fail to be saved because of a hash conflict.
Default switch status	Default status of the trap function: on: The trap function is enabled by default. off: The trap function is disabled by default.
Current switch status	Current status of the trap function: on: The trap function is enabled. off: The trap function is disabled.

display snmp-agent trap feature-name rm all

Function

The display snmp-agent trap feature-name rm all command displays all the alarms related to the Route Management (RM) module.

Format

display snmp-agent trap feature-name rm all

Parameters

None

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

The display snmp-agent trap feature-name rm all command displays the status of all the alarms related to the RM module.

Precautions

You can run the snmp-agent trap enable feature-name rm command to change the status of the alarms related to the RM module.

Example

# Display all alarms related to the RM module.

<HUAWEI>display snmp-agent trap feature-name rm all

-----------------------------------------------------------------------------
Feature name: rm                            
Trap number : 11        
------------------------------------------------------------------------------
Trap name                       Default switch status   Current switch status 

hwPublicIpv4PrefixExceedClear   off                     off                 
hwPublicIpv4PrefixExceed        off                     off                 
hwPublicIpv4PrefixThresholdExceedClear
                                off                     off                 
hwPublicIpv4PrefixThresholdExceed
                                off                     off                 

hwPublicIpv6PrefixExceedClear   off                     off                 
hwPublicIpv6PrefixExceed        off                     off                 
hwPublicIpv6PrefixThresholdExceedClear
                                off                     off                 
hwPublicIpv6PrefixThresholdExceed
                                off                     off                 
hwL3vpnIpv6PrefixExceedClear    off                     off                 
hwL3vpnIpv6PrefixExceed         off                     off                 
hwL3vpnIpv6PrefixThresholdExceed
                                off                     off

Table 7-230 Description of the display snmp-agent trap feature-name rm all command output

Item	Description
Feature name	Name of the module to which alarms are related
Trap number	Number of alarms
Trap name	Names of the alarms related to the RM module, including: hwPublicIpv4PrefixExceedClear: whether the clear alarm function in case the number of IPv4 public route prefixes falls below that supported by the system hwPublicIpv4PrefixExceed: whether the alarm function in case the number of IPv4 public route prefixes exceeds that supported by the system hwPublicIpv4PrefixThresholdExceedClear: whether the clear alarm function in case the number of IPv4 public route prefixes falls below the clear alarm threshold hwPublicIpv4PrefixThresholdExceed: whether the alarm function in case the number of IPv4 public route prefixes exceeds the alarm threshold hwPublicIpv6PrefixExceedClear: whether the clear alarm function in case the number of IPv6 public route prefixes falls below that supported by the system hwPublicIpv6PrefixExceed: whether the alarm function in case the number of IPv6 public route prefixes exceeds that supported by the system hwPublicIpv6PrefixThresholdExceedClear: whether the clear alarm function in case the number of IPv6 public route prefixes falls below the clear alarm threshold hwPublicIpv6PrefixThresholdExceed: whether the alarm function in case the number of IPv6 public route prefixes exceeds the alarm threshold hwL3vpnIpv6PrefixExceedClear: whether the alarm function in case the number of IPv6 route prefixes in the VPN instance exceeds the maximum number that is allowed hwL3vpnIpv6PrefixExceed: whether the alarm function in case the number of IPv6 route prefixes in the VPN instance exceeds the maximum number that is allowed hwL3vpnIpv6PrefixThresholdExceed: whether the alarm function in case the number of IPv6 route prefixes in the VPN instance exceeds the alarm threshold
Default switch status	Default status of alarms, including: on: enabled by default off: disabled by default
Current switch status	Current status of alarms, including: on: enabled off: disabled

Related Topics

snmp-agent trap enable feature-name rm

ecmp load-balance

Function

The ecmp load-balance command sets the ECMP load balancing mode.

The undo ecmp load-balance command deletes the configured ECMP load balancing mode.

By default, ECMP load balancing is performed on packets based on the source IP address, destination IP address, transport-layer source port number and destination port number.

Only the S5720EI, S5720HI, S6720S-EI and S6720EI support this command.

Format

ecmp load-balance sip [ dip ] [ port ]

undo ecmp load-balance sip [ dip ] [ port ]

Parameters

Parameter	Description	Value
sip	Configures ECMP load balancing based on the source IP address.	-
dip	Configures ECMP load balancing based on the destination IP address.	-
port	Configures ECMP load balancing based on the transport-layer source port number and destination port number.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

If you run the ecmp load-balance command in the system view multiple times, only the latest configuration takes effect.

Example

# Configure ECMP load balancing based on the source IP address.

<HUAWEI> system-view
[HUAWEI] ecmp load-balance sip

ecmp local-preference disable

Function

The ecmp local-preference disable command disables ECMP local preferential forwarding.

The undo ecmp local-preference disable command enables ECMP local preferential forwarding.

By default, ECMP local preferential forwarding is enabled.

Product	Support
S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI	Supported
S6720LI, S6720S-LI, S5720LI, S5720S-LI, S5710-X-LI, S5700LI, S5700S-LI, S2750EI, S2720EI, S1720GFR, S1720GW-E, S1720GWR-E, S1720X-E, S1720GW, S1720GWR, S1720X	Not supported

Format

ecmp local-preference disable

undo ecmp local-preference disable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Generally, you can use an Eth-Trunk or equal-cost routes to implement traffic load balancing. In a stack, when an inter-chassis Eth-Trunk is unavailable, you can use equal-cost routes for traffic load balancing. Because traffic will be forwarded between member switches, during a stack switchover, traffic switching depends on route convergence, some traffic will be lost. In this case, use ECMP local preferential forwarding to improve route convergence performance during a stack switchover and reduce traffic loss. In ECMP local preferential forwarding, traffic reaching the local switch is preferentially forwarded through a local interface. If the local outbound interface fails, traffic is forwarded through an interface on another member switch.

In Figure 7-2, SwitchA and SwitchB set up a stack and implement ECMP load balancing with upstream devices. If local preferential forwarding is not configured, traffic reaching SwitchA is load balanced based on ECMP, and some traffic is forwarded through stack cables and sent out from a physical interface on SwitchB. If local preferential forwarding is configured, traffic reaching SwitchA is forwarded through a local physical interface instead of a physical interface on SwitchB.

Figure 7-2 ECMP local preferential forwarding

Configuration Impact

After ECMP local preferential forwarding is enabled in a stack, traffic entering from the local device is preferentially forwarded through a local interface. Therefore, even load balancing of the traffic cannot be guaranteed. To address this issue, run the ecmp local-preference disable command to disable ECMP local preferential forwarding.

Precautions

Only a stack supports ECMP local preferential forwarding.
If the system software of a switch is upgraded to V200R010C00 or later, the ecmp local-preference disable configuration is automatically generated.
Enabling or disabling ECMP local preferential forwarding takes effect immediately for newly added routes and takes effect for existing routes only after these routes are re-advertised.
ECMP local preferential forwarding does not take effect in the following scenarios:
- No ARP entry for the next hop of a route is found.
- The next hop of a route is a blackhole.
- The next-hop outbound interface of a route is an Eth-Trunk interface.

Example

# Disable ECMP local preferential forwarding.

<HUAWEI> system-view
[HUAWEI] ecmp local-preference disable

fib regularly-refresh

Function

The fib regularly-refresh command configures the entire FIB entry update interval, FIB entry update interval per cycle, and the number of FIB entries updated per cycle.

The undo fib regularly-refresh command restores the default entire FIB entry update interval, FIB entry update interval per cycle, and the number of FIB entries updated per cycle.

By default, the entire FIB entry update interval is 1 minute, the FIB entry update interval per cycle is 1 second, and the number of FIB entries updated per cycle is 50.

Format

fib regularly-refresh { interval interval [ entry-number entry-number ] | entry-number entry-number | cycle-interval cycle-interval }

undo fib regularly-refresh { interval interval [ entry-number entry-number ] | entry-number entry-number | cycle-interval cycle-interval }

Parameters

Parameter	Description	Value
interval interval	Specifies an interval at which FIB entries are refreshed.	The value is an integer ranging from 1 to 300, in seconds.
entry-number entry-number	Specifies the number of FIB entries refreshed per circle.	The value is an integer ranging from 20 to 2000.
cycle-interval cycle-interval	Specifies the entire interval at which FIB entries are updated.	The value is an integer ranging from 1 to 1440, in minutes.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Regular FIB entry refreshing occupies system resources, including CPU and memory resources. A longer interval and smaller number result in less impact on other services. You can flexibly configure the interval and number based on system resources.

To allow underlying data to be forwarded in real-time and effective ways, you can configure a device to update FIB entries in cycles. The cycle-interval parameter specifies the interval for FIB entry update per cycle. Note that the cycle-interval, interval, and entry-number parameters together determine the FIB entry update process. As an example, assume that a device has 500 FIB entries.

If the three parameters use default values, the 500 FIB entries are updated in 10 cycles (with 50 FIB entries updated in each cycle), and the entry update can be completed within 10s (1s for each cycle). The device stays idle from 10s to 1 minute (entire FIB entry update interval).
If interval is set to 10s and cycle-interval and entry-number keep their default values, the 500 IPv6 FIB entries are still updated in 10 cycles, taking a total of 100s. In this case, the update period exceeds 1 minute, and then device cycles update from the next minute (a total of 2 minutes at this point). That is, the device updates IPv6 FIB entries at an interval of 2 minutes.

Prerequisites

Regular FIB entry refreshing has been enabled using the undo fib regularly-refresh disable command in the system view.

Example

# Set an interval at which FIB entries are refreshed to 5 seconds and the number of FIB entries refreshed per circle to 200.

<HUAWEI> system-view
[HUAWEI] fib regularly-refresh interval 5 entry-number 200

fib regularly-refresh disable

Function

The fib regularly-refresh disable command disables the FIB entry update function.

The undo fib regularly-refresh disable command enables the FIB entry update function.

By default, the FIB entry update function is enabled.

Format

fib regularly-refresh disable

undo fib regularly-refresh disable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

By default, a device starts FIB entry update 30 minutes after a device is powered on, and the update is performed regularly at an interval of 1 minute. Updating FIB entries occupy system resources. To avoid a high CPU usage within a short period, run the fib regularly-refresh { interval interval [ entry-number entry-number ] | entry-number entry-number | cycle-interval cycle-interval } command to set the entire FIB entry update interval or the FIB entry update interval per cycle to a larger value or reduce the number of FIB entries updated per cycle. If the CPU usage problem still persists, run the fib regularly-refresh disable command to disable the FIB entry update function.

Precautions

Disabling the FIB entry update function may cause a failure to rectify certain hardware faults in time. Exercise caution when running the fib regularly-refresh disable command.

Example

# Disable the FIB from being refreshed.

<HUAWEI> system-view

[HUAWEI] fib regularly-refresh disable

fib threshold-alarm

Function

The fib threshold-alarm command enables the alarm function for IPv4 route prefix usage and sets the alarm threshold.

The undo fib threshold-alarm command restores the default alarm threshold.

By default, the alarm function for IPv4 route prefix usage is enabled. The upper alarm threshold is 85% and the lower alarm threhold is 75%.

Only the S5720EI, S5720HI, S6720S-EI and S6720EI support this command.

Format

fib threshold-alarm upper-limit upper-limit-value lower-limit lower-limit-value

undo fib threshold-alarm

Parameters

Parameter	Description	Value
upper-limit upper-limit-value	Sets the upper alarm threshold for IPv4 route prefix usage.	The value is an integer that ranges from 1 to 100, in percentage.
lower-limit lower-limit-value	Sets the lower alarm threshold for IPv4 route prefix usage.	The value is an integer that ranges from 1 to 100, in percentage.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Overload of the IPv4 route prefix usage will cause entries unable to be delivered and result in a forwarding failure.

When the upper alarm threshold for IPv4 route prefix usage is smaller than 100%, an alarm is generated when the resource usage exceeds the upper alarm threshold or reaches 100%.
When the upper alarm threshold for IPv4 route prefix usage is set to 100%, an alarm is generated when the resource usage reaches 100%.

Precautions

The upper alarm threshold for the IPv4 route prefix usage must be larger than or equal to the lower alarm threshold.

Example

# Enable the alarm function for IPv4 route prefix usage and set the upper and lower alarm thresholds to 85% and 60% respectively.

<HUAWEI> system-view
[HUAWEI] fib threshold-alarm upper-limit 85 lower-limit 60

fib trap lpm-fail enable

Function

The fib trap lpm-fail enable command enables the trap function for the event that FIB entries fail to be delivered.

The undo fib trap lpm-fail enable command disables the trap function for the event that FIB entries fail to be delivered.

By default, the trap function is enabled for the event that FIB entries fail to be delivered.

Only the S6720SI, S6720S-SI, S5730SI, S5730S-EI, S6720LI, and S6720S-LI support this command.

Format

fib trap lpm-fail enable

undo fib trap lpm-fail enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

FIB entries may fail to be delivered because of an LPM algorithm error. For fault location, you can run the fib trap lpm-fail enable command to enable the trap function for the event that FIB entries fail to be delivered and check trap function. After this trap function is disabled, no trap is generated when FIB entries fail to be delivered because of an LPM algorithm error.

Precautions

Traps are generated for the event that FIB entries fail to be delivered only when this trap function is enabled. To set the trap interval, run the fib trap lpm-fail interval command. To set the maximum number of traps generated in a trap interval, run the fib trap lpm-fail history command.

Example

# Enable the trap function for the event that FIB entries fail to be delivered because of an LPM algorithm error.

<HUAWEI> system-view

[HUAWEI] fib trap lpm-fail enable

Related Topics

fib trap lpm-fail history

fib trap lpm-fail interval

fib trap lpm-fail history

Function

The fib trap lpm-fail history command sets the maximum number of traps generated when FIB entries fail to be delivered.

The undo fib trap lpm-fail history command restores the default maximum number of traps generated when FIB entries fail to be delivered.

By default, a maximum of 10 traps are generated each time FIB entries fail to be delivered.

Only the S6720SI, S6720S-SI, S5730SI, S5730S-EI, S6720LI, and S6720S-LI support this command.

Format

fib trap lpm-fail history history-number

undo fib trap lpm-fail history

Parameters

Parameter	Description	Value
history-number	Sets the maximum number of traps generated each time FIB entries fail to be delivered.	The value is an integer that ranges from 10 to 30.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

FIB entries may fail to be delivered because of an LPM algorithm error. By default, a maximum of 10 traps are generated each time FIB entries fail to be delivered. To change the maximum number of traps generated each time FIB entries fail to be delivered, run the fib trap lpm-fail history history-number command.

Example

# Set the maximum number of traps generated each time FIB entries fail to be delivered to 30.

<HUAWEI> system-view

[HUAWEI] fib trap lpm-fail history 30

Related Topics

fib trap lpm-fail enable

fib trap lpm-fail interval

Function

The fib trap lpm-fail interval command sets the interval for generating traps when FIB entries fail to be delivered.

The undo fib trap lpm-fail interval command restores the default interval for generating traps when FIB entries fail to be delivered.

By default, traps are generated at an interval of 60s when FIB entries fail to be delivered.

Only the S6720SI, S6720S-SI, S5730SI, S5730S-EI, S6720LI, and S6720S-LI support this command.

Format

fib trap lpm-fail interval interval-number

undo fib trap lpm-fail interval

Parameters

Parameter	Description	Value
interval-number	Sets the interval for generating traps.	The value is an integer that ranges from 30 to 3600, in seconds. The default value is 60.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

FIB entries may fail to be delivered because of an LPM algorithm error. By default, traps are generated at an interval of 60s when FIB entries fail to be delivered because of an LPM algorithm error. To change the interval, run the fib trap lpm-fail interval interval-number command.

Example

# Set the interval for generating traps when FIB entries fail to be delivered to 90s.

<HUAWEI> system-view

[HUAWEI] fib trap lpm-fail interval 90

Related Topics

fib trap lpm-fail enable

fib trap lpm-fail history

ip frr (system view)

Function

The ip frr command enables IP FRR for public routes.

The undo ip frr command disables IP FRR for public routes.

By default, IP FRR is disabled for public routes.

Product	Support
S6720EI, S6720S-EI, S5720HI, S5720EI, S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI	Supported
S6720LI, S6720S-LI, S5720LI, S5720S-LI, S5710-X-LI, S5700LI, S5700S-LI, S2750EI, S2720EI, S1720GFR, S1720GW-E, S1720GWR-E, S1720X-E, S1720GW, S1720GWR, S1720X	Not supported

Format

ip frr route-policy route-policy-name

undo ip frr [ all ]

Parameters

Parameter	Description	Value
route-policy route-policy-name	Enables IP FRR for public routes matching the specified route-policy.	The name is a string of 1 to 40 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
all	Disables IP FRR for all public and private routes. If this parameter is not specified, IP FRR is disabled for all public routes.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

With the development of the network, services such as audio, online video,and finance have more requirements for real time. Generally, active/standby links are deployed on the network to ensure service stability.

However, under traditional forwarding modes, when multiple routes to the same destination exist, switch selects the optimal route, which is delivered to FIB table to direct data forwarding. When the optimal link is faulty, switch waits for the completion of route convergence, then selects another optimal route, and then deliver the route to the FIB table. Then the service is recovered. This process leads to a long-time service interruption and cannot meet service requirements.

Using the ip frr command, you can enable IP FRR of the public network. IP FRR can specify a backup next hop and a backup interface and set backup forwarding information for IPv4 routes. When the active link is faulty, the system can switch the traffic immediately to the backup link. This process is irrelevant to route convergence and therefore services are interrupted for short time.

Pre-configuration Tasks

The ip frr command should be used with the apply backup-interface command and the apply backup-nexthop command. It is recommended to use the route-policy command to create Route-Policy at first, in which the apply backup-interface command and the apply backup-nexthop command are used to set a backup outbound interface and a backup next hop for IPv4 route of the public network.

Precautions

Only one policy can be used at one time. New configuration will replace the previous one if another policy is configured. Configuration in the system view and that in the VPN instance IPv4 address family view will not interfere each other.

Using the undo ip frr all command, IP FRR of all the public network and the private networks is disabled. Use it with caution.

Example

# Specify a backup outbound interface and a backup next hop in route-policy ip_frr_rp and enable IP FRR for public routes in the system view.

<HUAWEI> system-view

[HUAWEI] route-policy ip_frr_rp permit node 10

[HUAWEI-route-policy] apply backup-interface vlanif 100

[HUAWEI-route-policy] apply backup-nexthop 192.168.20.2

[HUAWEI-route-policy] quit

[HUAWEI] ip frr route-policy ip_frr_rp

ip prefix-limit

Function

The ip prefix-limit command configures a limit on the number of IPv4 public route prefixes.

The undo ip prefix-limit command restores the default configuration.

By default, the maximum number of IPv4 public route prefixes is not limited.

Format

ip prefix-limit number { alert-percent [ route-unchanged ] | simply-alert }

undo ip prefix-limit

Parameters

Parameter	Description	Value
number	Specifies the maximum number of IPv4 public route prefixes.	The value is an integer, and the minimum value is 1. The maximum number is determined by the license file.
alert-percent	Specifies the percentage of the maximum number of IPv4 public route prefixes. If you specify alert-percent in the command, when the number of IPv4 public route prefixes exceeds the value calculated by (number x alert-percent) /100, an alarm is generated. Additional IPv4 public route prefixes can still be added to the routing table until the number of IPv4 public route prefixes reaches number. Subsequent route prefixes are discarded.	The value is an integer ranging from 1 to 100.
route-unchanged	Indicates that the routing table remains unchanged. If you decrease alert-percent after the number of IPv4 public route prefixes exceeds number, whether the routing table remains unchanged is determined by route-unchanged. If you specify route-unchanged in the command, the routing table remains unchanged. If you do not specify route-unchanged in the command, the system deletes the routes from the routing table and re-adds routes. By default, the system deletes the routes from the routing table and re-adds routes.	-
simply-alert	Indicates the following function: If you specify simply-alert in the command, new IPv4 public route prefixes can still be added to the routing table and only an alarm is generated after the number of IPv4 public route prefixes exceeds number. However, when the total number of private and public route prefixes reaches the limit on the number of unicast route prefixes specified in the PAF file, subsequent IPv4 public route prefixes are discarded.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

If the switch imports a large number of routes, system performance may be affected when processing services because the routes consume a lot of system resources. To improve system security and reliability, you can run the ip prefix-limit command to configure a limit on the number of IPv4 public route prefixes. When the number of IPv4 public route prefixes exceeds the limit, an alarm is generated, prompting you to check whether unneeded IPv4 public route prefixes exist.

Configuration Impact

After the ip prefix-limit command is run, the switch may discard unneeded IPv4 public route prefixes.

If the number of IPv4 public route prefixes exceeds the value calculated from number x alert-percent/100, an alarm (RM_1.3.6.1.4.1.2011.5.25.145.19.1.3 hwPublicIpv4PrefixThresholdExceed) is generated.
If the number of IPv4 public route prefixes exceeds number, an alarm (RM_1.3.6.1.4.1.2011.5.25.145.19.1.1 hwPublicIpv4PrefixExceed) is generated.
If the number of IPv4 public route prefixes falls below the value calculated from (number x (alert-percent – 5))/100, a clear alarm (RM_1.3.6.1.4.1.2011.5.25.145.19.1.4 hwPublicIpv4PrefixThresholdExceedClear) is generated.
If the number of IPv4 public route prefixes exceeds number, a clear alarm (RM_1.3.6.1.4.1.2011.5.25.145.19.1.2 hwPublicIpv4PrefixExceedClear) is generated.

Precautions

If you run the ip prefix-limit command for several times, the last configuration overrides previous configurations.

After the number of IPv4 public route prefixes exceeds the limit, note the following rules:

If you run the ip prefix-limit command to increase number or the undo ip prefix-limit command to delete the limit, the switch relearns IPv4 public route prefixes.
Direct and static routes can still be added to the IP routing table.

Example

# Configure simply-alert so that only an alarm is generated when the switch imports more than 10000 IPv4 public route prefixes.

<HUAWEI> system-view

[HUAWEI] ip prefix-limit 10000 simply-alert

ip prefix-limit log-interval

Function

The ip prefix-limit log-interval command configures an interval at which logs are generated after the number of IPv4 public route prefixes exceeds the limit.

The undo ip prefix-limit log-interval command restores the default configuration.

By default, the system generates logs at an interval of 5s after the number of IPv4 public route prefixes exceeds the limit.

Format

ip prefix-limit log-interval interval

undo ip prefix-limit log-interval

Parameters

Parameter	Description	Value
interval	Specifies an interval at which logs are generated after the number of IPv4 public route prefixes exceeds the limit.	The value is an integer ranging from 1 to 60, in seconds.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The system generates logs at an interval of 5s after the number of IPv4 public route prefixes exceeds the limit. You can run the ip prefix-limit log-interval command to set a larger value for the interval to decrease the frequency at which these logs are generated.

The maximum number of IPv4 public route prefixes supported by the routing table can be adjusted using the ip prefix-limit command.

Precautions

If a log is generated to record the event that the number of IPv4 public route prefixes reaches the limit, no more routes can be added to the routing table, and subsequent routes are discarded.

Example

# Set the interval at which logs are generated after the number of IPv4 public route prefixes exceeds the limit to 30s.

<HUAWEI> system-view

[HUAWEI] ip prefix-limit log-interval 30

Related Topics

ip prefix-limit

ipv6 fib-loadbalance-type hash-based

Function

The ipv6 fib-loadbalance-type hash-based command configures packets sent from a specified source to a specified destination to be forwarded using the same route.

The undo ipv6 fib-loadbalance-type hash-based command restores the default configuration.

By default, flow-based load balancing is used.

Format

ipv6 fib-loadbalance-type hash-based

undo ipv6 fib-loadbalance-type hash-based

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

This command configures packets sent from a specified source to a specified destination to be forwarded using the same route.This command takes effect only when the FIB cache fails.

Example

# Configure packets sent from a specified source to a specified destination to be forwarded using the same route.

<HUAWEI> system-view

[HUAWEI] ipv6 fib-loadbalance-type hash-based

ipv6 fib regularly-refresh

Function

The ipv6 fib regularly-refresh command configures the entire IPv6 FIB entry update interval, IPv6 FIB entry update interval per cycle, and the number of IPv6 FIB entries updated per cycle.

The undo ipv6 fib regularly-refresh command restores the default entire IPv6 FIB entry update interval, IPv6 FIB entry update interval per cycle, and the number of IPv6 FIB entries updated per cycle.

By default, the entire IPv6 FIB entry update interval is 1 minute, the IPv6 FIB entry update interval per cycle is 1 second, and the number of IPv6 FIB entries updated per cycle is 50.

Format

ipv6 fib regularly-refresh { interval interval | entry-number entry-number | cycle-interval cycle-interval }

undo ipv6 fib regularly-refresh { interval interval | entry-number entry-number | cycle-interval cycle-interval }

Parameters

Parameter	Description	Value
interval interval	Specifies an interval at which IPv6 FIB entries are refreshed.	The value is an integer ranging from 1 to 300, in seconds.
entry-number entry-number	Specifies the number of IPv6 FIB entries refreshed per circle.	The value is an integer ranging from 20 to 2000.
cycle-interval cycle-interval	Specifies the entire interval at which IPv6 FIB entries are updated.	The value is an integer ranging from 1 to 1440, in minutes.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Regular IPv6 FIB entry refreshing occupies system resources, including CPU and memory resources. A longer interval and smaller number result in less impact on other services. You can flexibly configure the interval and number based on system resources.

To allow underlying data to be forwarded in real-time and effective ways, you can configure a device to update IPv6 FIB entries in cycles. The cycle-interval parameter specifies the interval for IPv6 FIB entry update per cycle. Note that the cycle-interval, interval, and entry-number parameters together determine the IPv6 FIB entry update process. As an example, assume that a device has 500 IPv6 FIB entries.

If the three parameters use default values, the 500 IPv6 FIB entries are updated in 10 cycles (with 50 IPv6 FIB entries updated in each cycle), and the entry update can be completed within 10s (1s for each cycle). The device stays idle from 10s to 1 minute (entire FIB entry update interval).
If interval is set to 10s and cycle-interval and entry-number keep their default values, the 500 IPv6 FIB entries are still updated in 10 cycles, taking a total of 100s. In this case, the update period exceeds 1 minute, and then device cycles update from the next minute (a total of 2 minutes at this point). That is, the device updates IPv6 FIB entries at an interval of 2 minutes.

Prerequisites

IPv6 FIB 24-hour refresh has been enabled. By default, this function has been enabled. If not, run the undo ipv6 fib regularly-refresh disable command in the system view to enable it.

Example

# Set an interval at which IPv6 FIB entries are refreshed to 5 seconds and the number of FIB entries refreshed per circle to 200.

<HUAWEI> system-view
[HUAWEI] fib regularly-refresh interval 5 entry-number 200

Related Topics

ipv6 fib regularly-refresh disable

Function

The ipv6 fib regularly-refresh disable command disables IPv6 FIB regularly refresh.

The undo ipv6 fib regularly-refresh disable command enables IPv6 FIB regularly refresh.

By default, IPv6 FIB regularly refresh is enabled.

Format

ipv6 fib regularly-refresh disable

undo ipv6 fib regularly-refresh disable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

During peak hours, refreshing the IPv6 FIB can cause over-high CPU usage and affect service reliability. To resolve this problem, run the ipv6 fib regularly-refresh disable command to disable IPv6 FIB regularly refresh. After the CPU usage restores to a normal state, run the undo ipv6 fib regularly-refresh disable command to restore IPv6 FIB regularly refresh.

Precautions

Disabling IPv6 FIB regularly refresh may prevent the rectification of certain hardware forwarding entry faults. Exercise caution when running the ipv6 fib regularly-refresh disable command.

Example

# Disable IPv6 FIB regularly refresh.

<HUAWEI> system-view
[HUAWEI] ipv6 fib regularly-refresh disable
Warning: This operation will disable the function of the FIB regularly refresh,Confirm?[Y/N]:y
Info: The function of the FIB regularly refresh is disabled.

Related Topics

ipv6 fib regularly-refresh

ipv6 prefix-limit

Function

The ipv6 prefix-limit command configures a limit on the number of IPv6 public route prefixes.

The undo ipv6 prefix-limit command restores the default configuration.

By default, the maximum number of IPv6 public route prefixes is not limited.

Format

ipv6 prefix-limit number { alert-percent [ route-unchanged ] | simply-alert }

undo ipv6 prefix-limit

Parameters

Parameter	Description	Value
number	Specifies the maximum number of IPv6 public route prefixes.	The value is an integer, and the minimum value is 1. The maximum number is determined by the license file.
alert-percent	Specifies the percentage of the maximum number of IPv6 public route prefixes. If you specify alert-percent in the command, when the number of IPv6 public route prefixes exceeds the value calculated by (number x alert-percent) /100, an alarm is generated. Additional IPv6 public route prefixes can still be added to the routing table until the number of IPv6 public route prefixes reaches number. Subsequent route prefixes are discarded.	The value is an integer ranging from 1 to 100.
route-unchanged	Indicates that the routing table remains unchanged. If you decrease alert-percent after the number of IPv6 public route prefixes exceeds number, whether the routing table remains unchanged is determined by route-unchanged. If you specify route-unchanged in the command, the routing table remains unchanged. If you do not specify route-unchanged in the command, the system deletes the routes from the routing table and re-adds routes. By default, the system deletes the routes from the routing table and re-adds routes.	-
simply-alert	Indicates the following function: If you specify simply-alert in the command, new IPv6 public route prefixes can still be added to the routing table and only an alarm is generated after the number of IPv6 public route prefixes exceeds number. However, when the total number of private and public route prefixes reaches the limit on the number of unicast route prefixes specified in the PAF file, subsequent IPv6 public route prefixes are discarded.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

If the switch imports a large number of routes, system performance may be affected when processing services because the routes consume a lot of system resources. To improve system security and reliability, you can run the ipv6 prefix-limit command to configure a limit on the number of IPv6 public route prefixes. When the number of IPv6 public route prefixes exceeds the limit, an alarm is generated, prompting you to check whether unneeded IPv6 public route prefixes exist.

Configuration Impact

After the ipv6 prefix-limit command is run, the switch may discard unneeded IPv6 public route prefixes.

Precautions

If you run the ipv6 prefix-limit command for several times, the last configuration overrides previous configurations.

After the number of IPv6 public route prefixes exceeds the limit, note the following rules:

If you run the ipv6 prefix-limit command to increase number or the undo ipv6 prefix-limit command to delete the limit, the switch relearns IPv6 public route prefixes.
Direct and static routes can still be added to the IPv6 routing table.

Example

# Configure simply-alert so that only an alarm is generated when the switch imports more than 10000 IPv6 public route prefixes.

<HUAWEI> system-view

[HUAWEI] ipv6 prefix-limit 10000 simply-alert

ipv6 prefix-limit log-interval

Function

The ipv6 prefix-limit log-interval command configures an interval at which logs are generated after the number of IPv6 public route prefixes exceeds the limit.

The undo ipv6 prefix-limit log-interval command restores the default configuration.

By default, the system generates logs at an interval of 5s after the number of IPv6 public route prefixes exceeds the limit.

Format

ipv6 prefix-limit log-interval interval

undo ipv6 prefix-limit log-interval

Parameters

Parameter	Description	Value
interval	Specifies an interval at which logs are generated after the number of IPv6 public route prefixes exceeds the limit.	The value is an integer ranging from 1 to 60, in seconds.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The system generates logs at an interval of 5s after the number of IPv6 public route prefixes exceeds the limit. You can run the ip prefix-limit log-interval command to set a larger value for the interval to decrease the frequency at which these logs are generated.

The maximum number of IPv6 public route prefixes supported by the routing table can be adjusted using the ipv6 prefix-limit command.

Precautions

If a log is generated to record the event that the number of IPv6 public route prefixes reaches the limit, no more routes can be added to the routing table, and subsequent routes are discarded.

Example

# Set the interval at which logs are generated after the number of IPv6 public route prefixes exceeds the limit to 30s.

<HUAWEI> system-view

[HUAWEI] ipv6 prefix-limit log-interval 30

Related Topics

ipv6 prefix-limit

l3-forward-entry aging

Function

The l3-forward-entry aging enable command enables the l3-forward-entry aging function.

The undo l3-forward-entry aging enable command disables the l3-forward-entry aging function.

By default, the l3-forward-entry aging function is disabled.

Product	Support
S6720EI, S6720S-EI, S5720HI, S5720EI	Supported
S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI, S6720LI, S6720S-LI, S5720LI, S5720S-LI, S5710-X-LI, S5700LI, S5700S-LI, S2750EI, S2720EI, S1720GFR, S1720GW-E, S1720GWR-E, S1720X-E, S1720GW, S1720GWR, S1720X	Not supported

Format

l3-forward-entry aging enable

undo l3-forward-entry aging enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

The l3-forward-entry aging enable command must be used together with the l3-forward-entry regularly-check command. After the l3-forward-entry aging function is enabled, the system reads the periodic l3-forward-entry check result everyday between 2 am and 5 am. When residual Layer 3 forwarding entries exist for more than 48 hours, the system triggers resource recycling and entry deletion.

Example

# Enable the l3-forward-entry aging function.

<HUAWEI> system-view
[HUAWEI] l3-forward-entry aging enable

# Disable the l3-forward-entry aging function.

<HUAWEI> system-view
[HUAWEI] undo l3-forward-entry aging enable

Related Topics

l3-forward-entry regularly-check

Function

The l3-forward-entry regularly-check command enables periodic l3-forward-entry check and sets the periodic l3-forward-entry check interval, scanning time for each round of check, and number of entries checked in each round of check.

The undo l3-forward-entry regularly-check command restores the default settings of periodic l3-forward-entry check.

By default, periodic l3-forward-entry check is enabled, the periodic l3-forward-entry check interval is 1 minute, the scanning time for each round of check is 1 second, and the number of entries checked in each round of check is 200.

Product	Support
S6720EI, S6720S-EI, S5720HI, S5720EI	Supported
S6720SI, S6720S-SI, S5730SI, S5730S-EI, S5720SI, S5720S-SI, S6720LI, S6720S-LI, S5720LI, S5720S-LI, S5710-X-LI, S5700LI, S5700S-LI, S2750EI, S2720EI, S1720GFR, S1720GW-E, S1720GWR-E, S1720X-E, S1720GW, S1720GWR, S1720X	Not supported

Format

l3-forward-entry regularly-check { enable | cycle-interval cycle-interval-value | interval interval-value | entry-number number }

undo l3-forward-entry regularly-check { enable | cycle-interval | interval | entry-number }

Parameters

Parameter	Description	Value
cycle-interval cycle-interval-value	Sets the periodic l3-forward-entry check interval.	The value is an integer that ranges from 1 to 1440, in minutes.
interval interval-value	Sets the scanning time for each round of l3-forward-entry check.	The value is an integer that ranges from 1 to 300, in seconds.
entry-number number	Sets the number of entries checked in each round of check.	The value is an integer that ranges from 20 to 2000.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After periodic l3-forward-entry check is configured, the device periodically checks l3-forward-entries to ensure realtime and valid bottom-layer forwarded data and records the check result. The check result can help locate problems of Layer 3 forwarding software resource leak and residual Layer 3 forwarding hardware entries.

The three parameters, cycle-interval, interval, and entry-number, together determine the periodic l3-forward-entry check process. For example, the device has a total of 2,000 l3-forward-entries:

If the three parameters use their default values, that is, 2,000 entries need to be checked in 10 rounds of check and can be checked within 10 seconds (with the scanning time of each round of check as 1 second), the system is idle during the period between 10 seconds to 1 minutes (periodic check interval).
If cycle-interval is set to 1 minute, interval is set to 10 seconds, and entry-number uses the default value, 2,000 entries still need to be updated for 10 rounds of check, and a total of 100 seconds is required to finish updating these entries. Then the update time will exceed 1 minute, so the device needs to start periodic update within the next 1 minute. In this situation, periodic update is performed at an interval of 2 minutes.

Precautions

Periodic l3-forward-entry check occupies system resources, including CPU and memory resources. A longer check interval and fewer entries indicate a smaller impact on other services. You can flexibly configure the l3-forward-entry check interval and number of checked entries based on system resources.

Example

# Enable periodic l3-forward-entry check.

<HUAWEI> system-view
[HUAWEI] l3-forward-entry regularly-check enable

# Set the periodic l3-forward-entry check interval to 10 minutes.

<HUAWEI> system-view
[HUAWEI] l3-forward-entry regularly-check cycle-interval 10

# Set the scanning time for each round of l3-forward-entry check to 5 seconds.

<HUAWEI> system-view
[HUAWEI] l3-forward-entry regularly-check interval 5

# Set the number of entries checked in each round of check to 500.

<HUAWEI> system-view
[HUAWEI] l3-forward-entry regularly-check entry-number 500

# Disable periodic l3-forward-entry check.

<HUAWEI> system-view
[HUAWEI] undo l3-forward-entry regularly-check enable

Related Topics

l3-forward-entry aging

refresh fib

Function

The refresh fib command delivers IPv4 FIB policies and forwarding entries.

Format

refresh fib slot slot-id

Parameters

Parameter	Description	Value
slot slot-id	Specifies the slot ID of a switch that needs to update IPv4 FIB policies.	The value is determined based on the device configuration.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After the IPv4 FIB policy changes, you must run the refresh fib command to update the switch to make the configuration take effect.

After the refresh fib command is executed, you can view the FIB table to check whether the update succeeds.

Precautions

If the FIB module is in overload state and the switch works in overload suspension mode, the IPv4 and IPv6 modules need to be updated.

Example

# Refresh IPv4 FIB module on the switch in slot 2.

<HUAWEI> system-view

[HUAWEI] refresh fib slot 2

refresh ipv6 fib

Function

The refresh ipv6 fib command delivers IPv6 FIB policies and forwarding entries.

Format

refresh ipv6 fib slot slot-id

Parameters

Parameter	Description	Value
slot slot-id	Specifies the slot ID of a switch that needs to update IPv6 FIB policies.	The value is determined based on the device configuration.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

After the IPv6 FIB policy changes, you must run the refresh ipv6 fib command to update the switch to make the configuration take effect.

After the refresh ipv6 fib command is executed, you can view the FIB table to check whether the update succeeds.

If the FIB module is in overload state and the switch works in overload suspension mode, the IPv4 and IPv6 modules need to be updated.

Example

# Update the IPv6 FIB module on the switch in slot 2.

<HUAWEI> system-view

[HUAWEI] refresh ipv6 fib slot 2

reset ip routing-table statistics protocol

Function

The reset ip routing-table statistics protocol command clears route statistics in an IPv4 routing table.

Format

reset ip routing-table statistics protocol [ vpn-instance vpn-instance-name ] { all | protocol }

reset ip routing-table all-vpn-instance statistics protocol { all | protocol }

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Clears route statistics in an IPv4 routing table of the specified VPN instance. If this parameter is not specified, route statistics in an IPv4 routing table of the public network are cleared.	The value must be an existing VPN instance name.
all	Clear route statistics of all routing protocols in an IPv4 routing table.	-
protocol	Clears route statistics of the specified routing protocol in an IPv4 routing table. This parameter can be the following keywords. For details, see the routing protocols supported by the device: direct, bgp, isis, ospf, rip, , static , and unr.	-
all-vpn-instance	Clears the statistics in the IPv4 routing tables of all VPN instances.	-

Views

User view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can use this command to clear route statistics in an IPv4 routing table, including statistics about the routes added, deleted, and released by each routing protocol. Subsequently, the system can recollect route statistics of each routing protocol again to monitor route changes and locate network faults.

Precautions

IPv4 route statistics cannot be restored after being cleared. Exercise caution when you use this command.

Example

# Clear route statistics of all routing protocols in an IPv4 routing table.

<HUAWEI> reset ip routing-table statistics protocol all

reset ipv6 routing-table statistics protocol

Function

The reset ipv6 routing-table statistics protocol command clears route statistics in an IPv6 routing table.

Format

reset ipv6 routing-table [ vpn-instance vpn-instance-name ] statistics protocol { all | protocol }

reset ipv6 routing-table all-vpn-instance statistics protocol { all | protocol }

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies the name of an IPv6 VPN instance.	The value must be an existing VPN instance name.
all	Clear route statistics of all routing protocols in an IPv6 routing table.	-
protocol	Clears route statistics of the specified routing protocol in an IPv6 routing table.	The value may be bgp, direct, isis, ospfv3, ripng, static, or unr. The specific value varies depending on the routing protocol supported by the device.
all-vpn-instance	Clears the statistics in the IPv6 routing tables of all VPN instances.	-

Views

User view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can use this command to clear route statistics of each routing protocol in an IPv6 routing table. Subsequently, the switch can recollect route statistics of each routing protocol to monitor route changes and locate network faults.

Precautions

IPv6 route statistics cannot be restored after being cleared. Exercise caution when you use this command.

Example

# Clear route statistics of all routing protocols in an IPv6 routing table.

<HUAWEI> reset ipv6 routing-table statistics protocol all

router id

Function

The router id command sets the router ID in RM.

The undo router id command deletes the configured router ID.

By default, the router ID in RM is 0.0.0.0 when no IPv4 interface address is configured.

Format

router id router-id

undo router id

Parameters

Parameter	Description	Value
router-id	Sets a router ID in the IPv4 address format.	The value is in dotted decimal notation.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Some dynamic routing protocols require that a router ID uniquely identify a device. If no router ID is specified when these protocols are started on a device, the router ID in RM is used by default.

The rules for selecting a router ID are as follows:

If you set a router ID using the router id command, the configured router ID is used.
If no router ID is set, the router selects a router ID based on IP addresses of current interfaces:
- If loopback interfaces configured with IP addresses exist, the largest IP address among the IP addresses of the loopback interfaces is selected as the router ID.
- If there is no loopback interface configured with an IP address, the highest IP address among the IP addresses of other interfaces is selected as the router ID, regardless of whether the interface is Up or Down.
The router ID is reselected only when the interface address that is selected as the router ID is deleted or changed. The router ID is not reselected in any of the following situations:
- The interface is Down.
- A loopback interface is configured when the IP address of a non-loopback interface is selected as the router ID.
- A larger interface address is configured later.
You can run the display router id command to view the router ID.
Each VPN instance selects the router ID from the IP addresses of the interfaces in the VPN instance based on rules 1 and 2.

After the router ID is changed, manually run the reset command for each routing protocol to make the new router ID take effect.

Precautions

The IP address of the interface whose configuration is restored the first is used as the router ID after the restart.

To enhance network reliability, configure the address of a loopback interface as the router ID.

Example

# Set the router ID in RM to 10.10.10.1.

<HUAWEI> system-view

[HUAWEI] router id 10.10.10.1

Related Topics

display router id

snmp-agent trap enable feature-name l3mb

Function

The snmp-agent trap enable feature-name l3mb command enables the trap function for the L3MB module.

The undo snmp-agent trap enable feature-name l3mb command disables the trap function for the L3MB module.

By default, the trap function is enabled for the L3MB module.

Format

snmp-agent trap enable feature-name l3mb [ trap-name { hwboardipv6aclreslack | hwboardl3aclreslack | hwboardl3fwdreslack | hwboardl3fwdreslackresume | hwboardl3ndreslack | hwboardservicefailed hwfwdentryconflict | hwfwdentryconflictresume } ]

undo snmp-agent trap enable feature-name l3mb [ trap-name { hwboardipv6aclreslack | hwboardl3aclreslack | hwboardl3fwdreslack | hwboardl3fwdreslackresume | hwboardl3ndreslack | hwboardservicefailed | hwfwdentryconflict | hwfwdentryconflictresume } ]

Parameters

Parameter	Description	Value
trap-name	Indicates the trap function for a specified event.	-
hwboardipv6aclreslack	Indicates the trap that the IPv6 service is abnormal because ACL resources are insufficient.	-
hwboardl3aclreslack	Indicates the trap that the Layer 3 service is abnormal because ACL resources are insufficient.	-
hwboardl3fwdreslack	Indicates the trap that the Layer 3 resource usage reaches or exceeds the upper threshold.	-
hwboardl3fwdreslackresume	Indicates the trap that when the Layer 3 resource usage falls below the lower threshold.	-
hwboardl3ndreslack	Indicates the trap that ND entries fail to be saved because of a hash conflict.	-
hwfwdentryconflict	Indicates the trap that the switch detected an anomaly when periodically checking l3-forward-entries.	-
hwfwdentryconflictresume	Indicates the trap that the switch detected that l3-forward-entries return to normal.	-
hwboardservicefailed	Indicates the trap that the switch fails to run globally delivered commands because Layer 2 user entry resources on the switch are insufficient.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

To enable the trap function for one or more events, you can specify trap-name.

Example

# Enable the system to generate a trap when the Layer 3 resource usage reaches or exceeds the upper threshold.

<HUAWEI> system-view
[HUAWEI] snmp-agent trap enable feature-name l3mb trap-name hwboardl3fwdreslack

snmp-agent trap enable feature-name rm

Function

The snmp-agent trap enable feature-name rm command enables the alarm function for the Route Management (RM) module.

The undo snmp-agent trap enable feature-name rm command disables the alarm function for the RM module.

By default, the alarm function for the RM module is disabled.

Format

snmp-agent trap enable feature-name rm [ trap-name { hwl3vpnipv6prefixexceed | hwl3vpnipv6prefixexceedclear | hwl3vpnipv6prefixthresholdexceed | hwpublicipv4prefixexceed | hwpublicipv4prefixexceedclear | hwpublicipv4prefixthresholdexceed | hwpublicipv4prefixthresholdexceedclear | hwpublicipv6prefixexceed | hwpublicipv6prefixexceedclear | hwpublicipv6prefixthresholdexceed | hwpublicipv6prefixthresholdexceedclear } ]

undo snmp-agent trap enable feature-name rm [ trap-name { hwl3vpnipv6prefixexceed | hwl3vpnipv6prefixexceedclear | hwl3vpnipv6prefixthresholdexceed | hwpublicipv4prefixexceed | hwpublicipv4prefixexceedclear | hwpublicipv4prefixthresholdexceed | hwpublicipv4prefixthresholdexceedclear | hwpublicipv6prefixexceed | hwpublicipv6prefixexceedclear | hwpublicipv6prefixthresholdexceed | hwpublicipv6prefixthresholdexceedclear } ]

Parameters

Parameter	Description	Value
trap-name	Enables the alarm function for specific events.	-
hwl3vpnipv6prefixexceed	Enables the alarm function in case the number of IPv6 route prefixes in the VPN instance exceeds the maximum number that is allowed.	-
hwl3vpnipv6prefixexceedclear	Enables the clear alarm function in case the number of IPv6 route prefixes in the VPN instance falls below the maximum number that is allowed.	-
hwl3vpnipv6prefixthresholdexceed	Enables the alarm function in case the number of IPv6 route prefixes in the VPN instance exceeds the alarm threshold.	-
hwpublicipv4prefixexceed	Enables the alarm function in case the number of IPv4 public route prefixes exceeds that supported by the system.	-
hwpublicipv4prefixexceedclear	Enables the clear alarm function in case the number of IPv4 public route prefixes falls below that supported by the system.	-
hwpublicipv4prefixthresholdexceed	Enables the alarm function in case the number of IPv4 public route prefixes exceeds the alarm threshold.	-
hwpublicipv4prefixthresholdexceedclear	Enables the clear alarm function in case the number of IPv4 public route prefixes falls below the clear alarm threshold.	-
hwpublicipv6prefixexceed	Enables the alarm function in case the number of IPv6 public route prefixes exceeds that supported by the system.	-
hwpublicipv6prefixexceedclear	Enables the clear alarm function in case the number of IPv6 public route prefixes falls below that supported by the system.	-
hwpublicipv6prefixthresholdexceed	Enables the alarm function in case the number of IPv6 public route prefixes exceeds the alarm threshold.	-
hwpublicipv6prefixthresholdexceedclear	Enables the clear alarm function in case the number of IPv6 public route prefixes falls below the clear alarm threshold.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Guidelines

The snmp-agent trap enable feature-name rm command enables the alarm function to monitor the tunnel group status. To enable the alarm function for one or more specific events on the RM module, set trap-name in the command.

Follow-up Procedure

You can run the display snmp-agent trap feature-name rm all command to view the alarms related to the RM module.

Example

# Enable the alarm function for the RM tunnel group reachable event.

<HUAWEI> system-view

[HUAWEI] snmp-agent trap enable feature-name rm trap-name hwpublicipv4prefixexceed

Command Support
arp vlink-direct-route advertise
display fib
display fib acl
display fib interface
display fib ip-prefix
display fib longer
display fib next-hop
display fib statistics
display fib statistics all
display ip routing-table
display ip routing-table limit
display ip routing-table protocol
display ip routing-table statistics
display ip routing-table time-range
display ipv6 fib
display ipv6 routing-table
display ipv6 routing-table limit
display ipv6 routing-table protocol
display ipv6 routing-table statistics
display ipv6 routing-table time-range
display rm bfd-session
display rm interface
display rm ipv6 bfd-session
display rm ipv6 interface
display router id
display route resource
display snmp-agent trap feature-name l3mb all
display snmp-agent trap feature-name rm all
ecmp load-balance
ecmp local-preference disable
fib regularly-refresh
fib regularly-refresh disable
fib threshold-alarm
fib trap lpm-fail enable
fib trap lpm-fail history
fib trap lpm-fail interval
ip frr (system view)
ip prefix-limit
ip prefix-limit log-interval
ipv6 fib-loadbalance-type hash-based
ipv6 fib regularly-refresh
ipv6 fib regularly-refresh disable
ipv6 prefix-limit
ipv6 prefix-limit log-interval
l3-forward-entry aging
l3-forward-entry regularly-check
refresh fib
refresh ipv6 fib
reset ip routing-table statistics protocol
reset ipv6 routing-table statistics protocol
router id
snmp-agent trap enable feature-name l3mb
snmp-agent trap enable feature-name rm

Translation

Favorite

Download

Update Date：2021-10-30

Document ID：EDOC1000178165

Downloads：5661

Average rating：0.0Points

Digital Signature File

digtal sigature tool