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Command Reference

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

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.
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IPv4 Configuration Commands

IPv4 Configuration Commands

NOTE:

The CE6810LI does not support IPv4 Layer 3 forwarding. After the IPv4 function is enabled on an interface of the CE6810LI, the configured IPv4 address can only be used to manage the switch.

ip address

Function

The ip address command configures an IP address for an interface.

The undo ip address command deletes the IP address of an interface.

By default, no IP address is configured for interfaces.

Format

ip address ip-address { mask | mask-length } [ sub ]

undo ip address [ ip-address { mask | mask-length } [ sub ] ]

Parameters

Parameter Description Value
ip-address Specifies an IP address. The value is in dotted decimal notation.
mask Specifies a subnet mask.

The IP address with the subnet mask of 255.255.255.255 can be assigned only to a Loopback interface.

The value is in dotted decimal notation.
mask-length

Specifies the length of the subnet mask.

The IP address with the subnet mask length of 32 can be assigned only to a Loopback interface.

The value is an integer ranging from 0 to 32.
sub Indicates a secondary IP address. To implement communication between subnets on one interface, configure secondary IP addresses. -

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

To configure an IP address and its mask for an interface, run the ip address command. This configuration allows the interface to access a network. To connect an interface to several subnets, configure several IP addresses for the interface, one of which is the primary IP address and the others are secondary IP addresses. Each interface can have a maximum of one primary IP address and 255 secondary IP addresses configured.

Configuration Impact

  • The undo ip address command deletes all IP addresses of an interface.
  • The undo ip address ip-address mask command deletes the primary IP address.
  • The undo ip address ip-address mask sub command deletes secondary IP addresses.
  • When you configure a new primary IP address for an interface, the newly configured address overrides the previous one.
  • After an interface is configured with an IP address, if the interface is Up, the system generates the host route and network segment route based on the IP address.

Precautions

The following conditions are prohibited for different interfaces on the same device:
  • The IP addresses are the same.
  • The broadcast addresses (with the host ID field containing all 1s in the binary mode) corresponding to the IP addresses are the same. For example, if the IP address of interface A is 10.1.1.1/16 and its corresponding broadcast address is 10.1.255.255 and the IP address of interface B is 10.1.1.2/24 and its corresponding broadcast address is 10.1.1.255, the configuration is successful. However, if the IP address of interface B is also 10.1.1.2/16 and its corresponding broadcast address is also 10.1.255.255, the configuration fails.
  • The IP address of an interface is the same as the broadcast address of another interface. For example, if the IP address of interface A is 1.1.1.1/28 and its broadcast address is 1.1.1.15 and the IP address of interface B is 1.1.1.15/26, the configuration fails.

IP addresses configured for interfaces cannot be multicast or broadcast addresses. Ethernet interfaces cannot be configured with loopback addresses.

All secondary IP addresses must be deleted before you delete the primary IP address.

The configured IP address cannot be the same as the network ID corresponding to the IP address. For example, given the IP address of 10.0.0.88 and subnet mask of 255.255.255.248 (or subnet mask length of 29), the network ID corresponding to the IP address is 10.0.0.88. In this case, the configured IP address is the same as the network ID and therefore is an invalid IP address.

Example

# Configure a primary IP address 10.102.0.1 and a secondary IP address 10.38.160.1 with the subnet mask 255.255.255.0 for 10GE 1/0/1.

<HUAWEI> system-view
[~HUAWEI] interface 10ge1/0/1
[~HUAWEI-10GE1/0/1] undo portswitch
[*HUAWEI-10GE1/0/1] ip address 10.102.0.1 255.255.255.0
[*HUAWEI-10GE1/0/1] ip address 10.38.160.1 255.255.255.0 sub

ip address unnumbered

Function

The ip address unnumbered command enables an interface to borrow an IP address from another interface.

The undo ip address unnumbered command disables an interface from borrowing an IP address from another interface.

By default, an interface is disabled from borrowing an IP address from another interface.

Format

ip address unnumbered interface interface-type interface-number

undo ip address unnumbered

Parameters

Parameter Description Value
interface interface-type interface-number Specifies the type and number of an interface whose IP address is borrowed. -

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

To save IP address resources, run the ip address unnumbered command to configure an interface to borrow an IP address from another interface. If an interface is only occasionally used, it is unnecessary to configure an IP address for the interface. Instead, configure the interface to borrow an IP address from another interface.

The following interfaces support IP borrowing from other interfaces such as Ethernet and loopback interfaces:
  • Tunnel interfaces

Prerequisites

The numbered interface has been configured with an IP address using the ip address command or has obtained an IP address through negotiation.

Configuration Impact

After an unnumbered interface borrows an IP address, the interface can use this IP address to communicate with other devices. The display interface command displays the borrowed IP address and its subnet mask.

Precautions

Because an interface with a borrowed IP address does not have its own IP address, the system cannot generate any route for the interface. Therefore, you need to manually configure the route to implement interconnection between switchs.

When configuring IP address unnumbered on an interface, note the following:

  • The IP address of the numbered interface cannot be a borrowed IP address.
  • The IP address of the numbered interface can be lent to multiple interfaces.
  • If the numbered interface has multiple IP addresses, only the primary IP address can be lent.
  • If the numbered interface is not configured with any IP address, the IP address 0.0.0.0 is borrowed.
  • The IP address of the virtual loopback interface can be lent to other interfaces, but the virtual loopback interface cannot borrow an IP address from another interface.

If a tunnel interace is not configured to borrow IP addresses of other interfaces, the tunnel interface does not have an IP address by default.

Example

# Configure Tunnel1/0/0 to borrow the IP address from LoopBack0.

<HUAWEI> system-view
[~HUAWEI] interface Tunnel 1/0/0
[*HUAWEI-Tunnel1/0/0] ip address unnumbered interface loopback 0

display ip interface

Function

The display ip interface command displays the IP configuration and statistics on interfaces. The statistics include the number of packets and bytes received and sent by interfaces, number of multicast packets sent and received by interfaces, and number of broadcast packets received, sent, forwarded, and discarded by interfaces.

The display ip interface brief command displays brief information about interface IP addresses, including the IP address, subnet mask, physical status, link-layer protocol status, and number of interfaces in different states.

Format

display ip interface [ interface-type interface-number ]

display ip interface brief [ interface-type [ interface-number ] | slot slot-id [ card card-number ] | ip-configured [ except interface-type ] ]

Parameters

Parameter Description Value
interface-type interface-number

Specifies the type and number of an interface. If no interface is specified, IP configuration and statistics about all interfaces are displayed.

-
brief Displays brief information, including the IP address, subnet mask, physical status, link-layer protocol status, and number of interfaces in different states. -
slot slot-id

Displays the IP configuration and statistics of interfaces on the specified device. slot-id specifies the stack ID of the device..

-
card card-number

Displays the IP configuration and statistics of interfaces on specified card.

-
ip-configured

Displays the IP configuration of interfaces configured with IP addresses.

-
except interface-type

Displays the IP configuration of interfaces excluding the interfaces of the specified type.

-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display ip interface brief command to view the following information:
  • IP configurations of all interfaces
  • IP configurations of interfaces of the specified type and a specified interface
  • IP configurations of interfaces that have IP addresses
This command, however, cannot display the IP configurations of Layer 2 interfaces or Eth-Trunk member interfaces.
NOTE:

Example

# Display IP information about VLANIF10.
<HUAWEI> display ip interface vlanif 10
Vlanif10 current state : UP                                                     
Line protocol current state : UP                                                
The Maximum Transmit Unit : 1500 bytes                                          
input packets : 97975772, bytes : 2553916906, multicasts : 97975765             
output packets : 187053, bytes : 12680782, multicasts : 187054                  
Directed-broadcast packets:                                                     
 received packets:            0, sent packets:              0                   
 forwarded packets:           0, dropped packets:           0                   
Internet Address is 10.100.1.2/24                                              
Broadcast address : 10.100.1.255                                               
TTL being 1 packet number:    588746                                            
TTL invalid packet number:         0                                            
ICMP packet input number:          7                                            
  Echo reply:                      0                                            
  Unreachable:                     0                                            
  Source quench:                   0                                            
  Routing redirect:                0                                            
  Echo request:                    7                                            
  Router advert:                   0                                            
  Router solicit:                  0                                            
  Time exceed:                     0                                            
  IP header bad:                   0                                            
  Timestamp request:               0                                            
  Timestamp reply:                 0                                            
  Information request:             0                                            
  Information reply:               0                                            
  Netmask request:                 0                                            
  Netmask reply:                   0                                            
  Unknown type:                    0                                           
DHCP packet deal mode: global
# Display IP information about 10GE1/0/1.
<HUAWEI> display ip interface 10ge 1/0/1
10GE 1/0/1 current state : UP                                                    
Line protocol current state : UP                                                
The Maximum Transmit Unit : 1500 bytes                                          
input packets : 2095, bytes : 110024, multicasts : 0                            
output packets : 2077, bytes : 103169, multicasts : 0                           
Directed-broadcast packets:                                                     
 received packets:            0, sent packets:              0                   
 forwarded packets:           0, dropped packets:           0                   
ARP packet input number:          46                                            
  Request packet:                  0                                            
  Reply packet:                   46                                            
  Unknown packet:                  0                                            
Internet Address is 10.1.1.2/24                                                 
Broadcast address : 10.1.1.255                                                  
TTL being 1 packet number:         0                                            
TTL invalid packet number:         0                                            
ICMP packet input number:          0                                            
  Echo reply:                      0                                            
  Unreachable:                     0                                            
  Source quench:                   0                                            
  Routing redirect:                0                                            
  Echo request:                    0                                            
  Router advert:                   0                                            
  Router solicit:                  0                                            
  Time exceed:                     0                                            
  IP header bad:                   0                                            
  Timestamp request:               0                                            
  Timestamp reply:                 0                                            
  Information request:             0                                            
  Information reply:               0                                            
  Netmask request:                 0                                            
  Netmask reply:                   0                                            
  Unknown type:                    0 
DHCP packet deal mode: global
Table 8-1  Description of the display ip interface command output

Item

Description

Vlanif10 current state

Current status of an interface.

Line protocol current state

Indicates the link-layer protocol status of the interface.
  • UP: indicates that the link-layer protocol status of the interface is Up.

  • DOWN (BFD status down): indicates that the BFD session bound to the interface goes Down.

  • DOWN (Main BFD status down): indicates that the BFD session bound to the main interface goes Down, which changes the BFD session status on the Layer 2 or Layer 3 sub-interface correspondingly. This state is available for only the Layer 2 or Layer 3 sub-interface.

  • DOWN: indicates that the link-layer protocol status of the interface is Down or no IP address is assigned to the interface.

  • UP (spoofing): indicates that the link-layer protocol of the interface is always Up with the spoofing feature enabled.

  • Administratively Down: The administrator runs the shutdown network-layercommand on the interface.

The Maximum Transmit Unit

Maximum Transmission Unit (MTU).

input packets : bytes : multicasts :

Numbers of packets, bytes, and multicast packets received by an interface.

output packets :bytes : multicasts :

Numbers of packets, bytes, and multicast packets sent by an interface.

Directed-broadcast packets

  • received packets: indicates the number of broadcast packets received by an interface in the broadcast domain.
  • sent packets: indicates the number of broadcast packets sent by an interface in the broadcast domain.
  • forwarded packets: indicates the number of broadcast packets forwarded by an interface. If broadcast packet forwarding is not enabled on the interface, the value is 0.
  • dropped packets: indicates the number of broadcast packets discarded by an interface.

ARP packet input number

Indicates the number of received ARP packets.

  • Request packet: indicates the number of request packets.
  • Reply packet: indicates the number of response packets.
  • Unknown packet:indicates the number of unknown packets.

Internet Address is

IP address of an interface, in the format of IP address/mask length.

Broadcast address

Broadcast address of an interface.

If a primary IP address with a 31-bit mask is configured for the interface, this field is empty.

TTL being 1 packet number

Number of packets with TTL 1.

TTL invalid packet number

Number of packets with invalid TTL.

ICMP packet input number

Statistics about ICMP packets received by an interface, including Echo Request and Reply packets, Destination Unreachable packets, Source Quench packets, Redirect packets, Router Advertisement packets, Router Solicitation packets, Time Exceeded packets, IP header error packets, Timestamp Request and Reply packets, Information Request and Reply packets, Address Mask Request and Reply packets, and unknown packets.

DHCP packet deal mode

DHCP packet deal mode.
  • global: DHCP Relay is disabled.
  • Relay: DHCP Relay is enabled.
# Display brief IP information about all interfaces.
<HUAWEI> display ip interface brief
*down: administratively down                                                    
!down: FIB overload down                                                        
^down: standby                                                                  
(l): loopback                                                                   
(s): spoofing                                                                   
(d): Dampening Suppressed                                                       
The number of interface that is UP in Physical is 2
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 2
The number of interface that is DOWN in Protocol is 0
Interface                   IP Address/Mask    Physical Protocol VPN
MEth0/0/0                   10.10.63.10/24     up       up       --
NULL0                       unassigned         up       up(s)    --
Table 8-2  Description of the display ip interface brief command output

Item

Description

*down

Indicates the reason that interface is physically Down.

Administratively down: indicates that the network administrator runs the shutdown command on the interface.

!down

Indicates that the interface goes Down because the number of route prefixes in the FIB exceeds the upper limit.

^down

Indicates that the interface is a backup interface.

(l): loopback

Indicates that the loopback function is enabled on the interface.

(s): spoofing

Indicates that the spoofing function is enabled on the interface.

(d): Dampening Suppressed

Indicates that the protocol module of the interface is suppressed.

The number of interface that is UP/DOWN in Physical is

Indicates the Up or Down state of a physical link and the number of interfaces in different states.

The number of interface that is UP/DOWN in Protocol is

Indicates the Up or Down state of the protocol and the number of interfaces in different states.

Interface

Indicates the interface type and number.

IP Address/Mask

Indicates the IP address and subnet mask of a Layer 3 interface.

Physical

Indicates the physical status of an interface, including:
  • Up: indicates that the interface runs normally.
  • Down: indicates that the interface becomes faulty.
  • offline: indicates that the component of the interface is not installed.
  • *down: indicates that the administrator runs the shutdown command on the interface.
  • !down: indicates that the FIB module is in the overload suspension state. In this case, the link protocol status of the interface is Down.
  • ^down: indicates that the interface is a backup interface.

Protocol

Indicates the link protocol status of the interface. Possible link protocol status is as follows:
  • Up: indicates that the link protocol status of the interface is normal.
  • Down: indicates that the link protocol status of the interface is abnormal or the interface is not configured with an IP address.

VPN

Instance name of the VPN that bound to the interface. If no VPN is configured, display --.

Related Topics

display interface

Function

The display interface command displays the interface running status and statistics.

Format

display interface [ interface-type [ interface-number [.subnumber ] ] ]

display interface [ slot slot-id | main ]

display interface interface-type main

Parameters

Parameter

Description

Value

interface-type

Specifies the type of an interface. If no interface type is specified, the running status and statistics of all main interfaces are displayed.

-
interface-number

If the interface type is specified but no interface number is specified, the running status and statistics of all the interfaces of this type is displayed.

-
subnumber

Displays the running status of a Layer 3 sub-interface or Layer 2 sub-interface.

-
slot slot-id

Displays running status and statistics of the specified slot ID.

-
main
Displays running status and statistics of main interfaces.
  • If an interface has no sub-interfaces, the status of and traffic statistics on the interface are displayed whether you specify this parameter or not.
  • If an interface has sub-interfaces, the status of and traffic statistics on the interface and its sub-interfaces are displayed if you do not specify this parameter.
-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

The running status and statistics of an interface includes the physical status, basic configuration, and packet forwarding of the interface. You can use the display interface command to collect traffic statistics or locate faults on an interface.

By default, traffic statistics on Layer 3 sub-interfaces and VLANIF interfaces contain bytes in the interframe gap (IFG).

The displayed information of logical interfaces is different from that of physical interfaces. For displayed information of logical interfaces and explanations, see related display commands such as display interface eth-trunk, display interface vlanif and display interface loopback.

Precautions

  • When the loopback function is enabled on an interface (using the loopback command in the interface view or the service type tunnel command in the Eth-Trunk interface view), the physical status and protocol status of the Ethernet interface and the Eth-Trunk member interface are Up.

  • If a CE6810LI functions as a standalone switch, the CE6810LI does not support Layer 3 sub-interfaces. If a CE6810LI functions as a leaf switch in an SVF system consisting of fixed switches, the CE6810LI supports Layer 3 sub-interfaces

  • If no interface type or slot is specified, the running status and statistics of all the interfaces are displayed.

  • For the CE6880EI:
    • When receiving or sending jumbo frames, the switches add the number of jumbo frames to the jumbo frame statistics, and also add the number to the corresponding unicast, multicast, or broadcast packet statistics.

    • Only known unicast and multicast packet statistics on stack member interfaces are collected, and unknown unicast packet statistics are collected as multicast packet statistics.

  • For switches excluding the CE6870EI and CE6880EI, if congestion occurs on an interface after flow control is configured, the number of discarded packets is included in the value of the Discard field under the Input field in the display interface command output.

Example

# Display information about Layer 2 interface 10GE1/0/1.

<HUAWEI> display interface 10ge 1/0/1
10GE1/0/1 current state : UP (ifindex: 4)                             
Line protocol current state : UP                                                
Description:                                                                    
Switch Port, PVID :    1, TPID : 8100(Hex), The Maximum Frame Length is 9216    
Internet protocol processing : disabled                                         
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 0025-9e95-7c21 
Port Mode:     COMMON FIBER,     Port Split/Aggregate:         DISABLE          
Speed:                10000,     Loopback:                        NONE          
Duplex:                FULL,     Negotiation:                  DISABLE          
Input Flow-control: DISABLE,     Output Flow-control:          DISABLE          
Mdi:                      -,     Fec:                                -
Last physical up time   : 2013-10-24 11:00:19                                   
Last physical down time : 2013-10-23 14:07:45                                   
Current system time: 2013-10-29 10:15:29                                        
Statistics last cleared:never                                                   
    Last 300 seconds input rate: 171 bits/sec, 0 packets/sec                    
    Last 300 seconds output rate: 144 bits/sec, 0 packets/sec                   
    Input peak rate 8245791920 bits/sec, Record time: 2013-10-26 10:21:43       
    Output peak rate 8181563138 bits/sec, Record time: 2013-10-26 10:15:46      
    Input :       876952146048 bytes,         9329219248 packets                
    Output:      1968304390465 bytes,        21888927861 packets                
    Input:                                                                      
      Unicast:                  15168,   Multicast:              9329204080     
      Broadcast:                    0,   Jumbo:                           0     
      Discard:                      0,   Frames:                          0     
      Pause:                        0 

      Total Error:                  0     
      CRC:                          0,   Giants:                          0     
      Jabbers:                      0,   Fragments:                       0     
      Runts:                        0,   DropEvents:                      0     
      Alignments:                   0,   Symbols:                         0     
      Ignoreds:                     0
                                                                                
    Output:                                                                     
      Unicast:                  15763,   Multicast:             21888912096     
      Broadcast:                    2,   Jumbo:                           0     
      Discard:             3056469870,   Buffers Purged:                  0     
      Pause:                        0                                           
                                                                                
    Input bandwidth utilization threshold : 90.00%                             
    Output bandwidth utilization threshold: 90.00%                             
    Last 300 seconds input utility rate:  0.01%                                 
    Last 300 seconds output utility rate: 0.01%

# Display information about Layer 3 interface 10GE1/0/1.

<HUAWEI> display interface 10ge 1/0/1
10GE1/0/1 current state : UP (ifindex: 4)                             
Line protocol current state : UP                                                
Description:                                                                    
Route Port,The Maximum Transmit Unit is 1500,The Maximum Frame Length is 9216   
Internet protocol processing : disabled                                         
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 0025-9e95-7c21 
Port Mode:     COMMON FIBER,     Port Split/Aggregate:         DISABLE
Speed:                 1000,     Loopback:                        NONE          
Duplex:                FULL,     Negotiation:                   ENABLE          
Input Flow-control: DISABLE,     Output Flow-control:          DISABLE       
Mdi:                      -,     Fec:                                -
Last physical up time   : 2013-10-24 11:00:19                                   
Last physical down time : 2013-10-23 14:07:45                                   
Current system time: 2013-10-29 10:15:29                                        
Statistics last cleared:never                                                   
    Last 300 seconds input rate: 171 bits/sec, 0 packets/sec                    
    Last 300 seconds output rate: 144 bits/sec, 0 packets/sec                   
    Input peak rate 8245791920 bits/sec, Record time: 2013-10-26 10:21:43       
    Output peak rate 8181563138 bits/sec, Record time: 2013-10-26 10:15:46      
    Input :       876952146048 bytes,         9329219248 packets                
    Output:      1968304390465 bytes,        21888927861 packets                
    Input:                                                                      
      Unicast:                  15168,   Multicast:              9329204080     
      Broadcast:                    0,   Jumbo:                           0     
      Discard:                      0,   Frames:                          0     
      Pause:                        0 

      Total Error:                  0     
      CRC:                          0,   Giants:                          0     
      Jabbers:                      0,   Fragments:                       0     
      Runts:                        0,   DropEvents:                      0     
      Alignments:                   0,   Symbols:                         0     
      Ignoreds:                     0
                                                                                
    Output:                                                                     
      Unicast:                  15763,   Multicast:             21888912096     
      Broadcast:                    2,   Jumbo:                           0     
      Discard:             3056469870,   Buffers Purged:                  0     
      Pause:                        0                                           
                                                                                
    Input bandwidth utilization threshold : 90.00%                             
    Output bandwidth utilization threshold: 90.00%                             
    Last 300 seconds input utility rate:  0.01%                                 
    Last 300 seconds output utility rate: 0.01% 

# Display information about Layer 3 sub-interface 10GE1/0/1.1.

<HUAWEI> display interface 10ge1/0/1.1 10GE1/0/1.1 current state : UP (ifindex: 3799)                                 Line protocol current state : UP                                               Description:                                                                     Route Port,The Maximum Transmit Unit is 1500                                     Internet Address is 10.1.1.1/24                                                  IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 0019-7459-3302  Current system time: 2016-01-27 01:07:58                                         Last 300 seconds input rate 0 bits/sec, 0 packets/sec                            Last 300 seconds output rate 0 bits/sec, 0 packets/sec                           Input:  0 packets, 0 bytes                                                       Output:  0 packets, 0 bytes                                                          Last 300 seconds input utility rate:  0.00%                                      Last 300 seconds output utility rate: 0.00%                                 

# Display information about MEth interface MEth0/0/0.

<HUAWEI> display interface MEth0/0/0
MEth0/0/0 current state : UP (ifindex: 3)                                       
Line protocol current state : UP                                                
Last line protocol up time : 2014-08-29 14:30:21                                
Description:                                                                    
Route Port,The Maximum Transmit Unit is 1500                                    
Internet Address is 192.168.80.101/24                                           
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 306b-2079-2200 
Media type: twisted pair, Link type: auto negotiation                           
Loopback: NONE, Maximal BW: 1000M, Current BW: 100M, Full-duplex mode           
Last physical up time   : 2014-08-29 14:30:21                                   
Last physical down time : 2014-08-29 14:30:15                                   
Current system time: 2014-09-03 19:08:48                                        
Statistics last cleared:never                                                   
    Last 300 seconds input rate: 1116 bits/sec, 1 packets/sec                   
    Last 300 seconds output rate: 1005 bits/sec, 1 packets/sec                  
    Input peak rate 3889 bits/sec, Record time: 2014-09-01 20:24:43             
    Output peak rate 107872 bits/sec, Record time: 2014-09-01 20:23:52          
    Input :           25807038 bytes,             262796 packets                
    Output:           17336411 bytes,             206105 packets                
    Input:                                                                      
      Unicast:                 203772,   Multicast:                   30327     
      Broadcast:                28704,   Overrun:                         0     
      Over-car-pps:                 0                                           
                                                                                
      Total Error:                  0,   CRC:                             0     
      Giants:                       0,   Jabbers:                         0     
      Runts:                        0,   Fragments:                       0     
                                                                                
    Output:                                                                     
      Unicast:                 205805,   Multicast:                       0     
      Broadcast:                  300,   Underrun:                        0     
    Last 300 seconds input utility rate:  0.01%                                 
    Last 300 seconds output utility rate: 0.01% 
Table 8-3  Description of the display interface command output

Item

Description

current state

Physical status of the interface:
  • UP: indicates that the interface is physically Up.

  • OFFLINE: indicates that the interface is in offline state.
  • DOWN: indicates that the interface is physically Down.

    When the interface fault at the physical layer results from the following causes, the device displays the corresponding information following "Down" to prompt you to modify the configuration or replace the module. For example, the information "DOWN(Transceiver type mismatch)" is displayed.

    • Transceiver speed mismatch
    • Transceiver type mismatch
    • Negotiation unsupported
    • Port mode mismatch
    • The optical power is too low
    • Transceiver loose
    • Fast-up configuration mismatch
    • Trunk error down
    • Port unavailable
    • Cable for stack port only
    NOTE:

    This interface fault usually occurs when you replace an optical module or board after the current configuration takes effect and the new optical module or board does not support the original configuration. For example, the SFP-GE electrical module is used on the original interface and the speed 100 command is configured. After the SFP-GE electrical module is replaced with the SFP-GE optical module, the interface status is Down because the optical module does not support the rate configuration. In this case, run the undo speed 100 command to delete the speed configuration or use the transceiver module that supports the speed configuration.

  • TRIGGER DOWN (1AG auto recover): If a connectivity fault detected by CFM, the CFM shuts down and then starts Port1 after 7s.

  • Administratively DOWN: The administrator has run the shutdown command on the interface.

  • Flow DOWN: The status of the data flow on the interface is Down. This state is determined by the status of the mVRRP bound to the interface. If the mVRRP status is Backup or Initialize, the status of the data flow on the interface is Down.

  • ERROR DOWN: For details about the cause and description, see Table 8-4.

Line protocol current state

Link layer protocol status of the interface:
  • UP: indicates that the link layer protocol status of the interface is Up.

  • DOWN (BFD status down): indicates that the BFD session bound to the interface goes Down.

  • DOWN (Main BFD status down): The BFD session bound to the main interface goes Down, which changes the BFD session status on the Layer 2 or Layer 3 sub-interface correspondingly. This state is available only for the Layer 2 or Layer 3 sub-interface.

  • DOWN (Main bit-error-detection down): The status displayed on Layer 2 or Layer 3 sub-interfaces when the bit error ratio of the interface exceeds the alarm threshold. By default, the bit error function on an interface associates with that on Layer 2 or Layer 3 sub-interfaces.

  • DOWN (CFM down): indicates that the CFM session bound to the interface goes Down.

  • DOWN: indicates that the link layer protocol status of the interface is Down or no IP address is assigned to the interface.

  • UP (spoofing): indicates that the link layer protocol of the interface is always Up with the spoofing feature enabled.

  • Administratively Down: The administrator runs the shutdown network-layer command on the interface.

Last line protocol up time

Last time when the protocol status on the interface is Up.

Description

Interface description.

To configure the description for an interface, run the description command.

Switch Port

A Layer 2 interface.

If the interface is a Layer 3 interface, such as VLANIF interface, Route Port is displayed here.

Internet Address

IP address. If no IP address is assigned to the interface, the system displays "Internet protocol processing : disabled."

Media type

Cable type of the MEth interface. The MEth interface complies with the 10/100BASE-TX standard. Twisted pair cables are used.

Link type

Link status of the MEth interface:
  • auto negotiation: indicates the auto-negotiation mode.
  • force link: indicates the forced mode. In the forced mode, the management interface supports only interface rate configuration, but does not support duplex mode configuration.

Maximal BW

Maximum bandwidth of the MEth interface.

Current BW

Current bandwidth of the MEth interface.

Full-duplex mode

The MEth interface works in full-duplex mode and does not support half-duplex mode.

PVID

Default VLAN ID of the interface.

TPID

Type of frames that are supported on the interface.

By default, this field displays 0x8100, indicating an 802.1Q frame.

The Maximum Transmit Unit

MTU of the interface.

For example, the default MTU of an Ethernet interface or a serial interface is 1500 bytes. Packets whose size is greater than the MTU are fragmented before being transmitted. If fragmentation is not allowed, these packets are discarded.

The Maximum Frame Length

Maximum frame length allowed by the interface.

To set the maximum frame length, run the jumboframe enable command.

Internet protocol processing

If the interface is a Layer 3 interface and has an IP address configured, this field displays the IP address.

If the interface is a Layer 2 interface or has no IP address configured, this field displays disabled.

IP Sending Frames' Format

Format of the frame contained in the sent IP packet, which can be PKTFMT_ETHNT_2, Ethernet_802.3, or Ethernet_SNAP.

Hardware address

MAC address of the device.

Port Mode

Working mode of the interface:
  • COMMON COPPER: The interface works as an electrical interface.
  • COMMON FIBER: The interface works as an optical interface.

Port Split

Split status of the interface:
  • Hyphen (-): indicates N/A.
  • disable: indicates that the current interface is not split. This field is displayed only for an interface that can be split.
  • enable: indicates that the current interface is an interface split from an interface. This status is displayed only after the split configuration takes effect.
  • Enable after board reset: Interface split is enabled after the board is reset.

    An interface can be split only after the board is reset. The status is displayed after the port split command is run to split an interface and before the board is reset.

  • Disable after board reset: Interface merge is enabled after the board is reset.

    An interface can be merged only after the board is restarted. The status is displayed after the undo port split command is run to merge an interface and before the board is reset.

For details about how to split an interface, see port split.
NOTE:

If the interface is an optical interface, this field displays Port Split/Aggregate, indicating the interface split or aggregation state.

Speed

Current rate of the interface. If - is displayed, the interface is unavailable.
  • In auto-negotiation mode, the speed auto command configures the rate of an interface.
  • In non-auto-negotiation mode, the speed command configures the rate of an interface.

Loopback

Loopback configuration of the interface.

To configure loopback on an interface, run the loopback command.

Duplex

Duplex mode of the interface.

If this field displays FULL, the interface works in full-duplex mode.

If this field displays HALF, the interface works in half-duplex mode.

Negotiation

Auto-negotiation mode of the interface. The negotiation disable command configures the auto-negotiation mode for an Ethernet electrical interface.
  • ENABLE: The interface works in auto-negotiation mode.
  • DISABLE: The interface works in non-auto-negotiation mode.

Mdi

Network cable type of the interface.

The network cable type is displayed for an electrical interface as auto, and displayed as a hyphen (-) for an optical interface.

FEC

FEC mode of an optical interface.
  • RS-FEC: indicates that the RS-FEC function is enabled on a QSFP28 or a 25GE interface when an optical module is installed or the medium type is pre-configured.
  • BASE-FEC: indicates that the BASE-FEC function is enabled on an SFP28 interface when an optical module is installed or the medium type is pre-configured.
  • NONE: indicates that no optical module is installed on a QSFP28 or a 25GE interface or the FEC function is not configured.
On a non-QSFP28 or non-25GE interface, the FEC mode cannot be configured and this field displays -.

Hold down time

Delay in reporting an interface Down event. This field is displayed only after carrier down-hold-time is configured.

Hold up time

Delay in reporting an interface Up event. This field is displayed only after carrier up-hold-time is configured.

Input Flow-control

Whether flow control is enabled in the inbound direction:
  • ENABLE: Flow control is enabled in the inbound direction of the interface.

  • DISABLE: Flow control is disabled in the inbound direction of the interface.

NOTE:

By default, this field displays DISABLE. If the flow-control [ input ] command has been executed to enable flow control in both inbound and outbound directions or only the inbound direction of an Ethernet interface, this field displays ENABLE.

Output Flow-control

Whether flow control is enabled in the outbound direction:
  • ENABLE: Flow control is enabled in the outbound direction of the interface.

  • DISABLE: Flow control is disabled in the outbound direction of the interface.

NOTE:

By default, this field displays DISABLE. If the flow-control [ output ] command has been executed to enable flow control in both inbound and outbound directions or only the outbound direction of an Ethernet interface, this field displays ENABLE.

Last physical up time

Last time the interface went Up physically. If this field displays "-", the physical status of the interface does not change.

Last physical down time

Last time the interface went Down physically. If this field displays "-", the physical status of the interface does not change.

Current system time

Current system time.

If the time zone is configured and the daylight saving time is used, the time is in YYYY/MM/DD HH:MM:SS UTC±HH:MM DST format.

Statistics last cleared

Last time traffic statistics on the interface are cleared.

Last 300 seconds input rate

Incoming packet rate (bits per second and packets per second) within the last 300 seconds.

Last 300 seconds output rate

Outgoing packet rate (bits per second and packets per second) within the last 300 seconds.

Input peak rate/Record time

Maximum rate of incoming packets and time when the maximum rate is reached.
NOTE:

The maximum rate is the maximum sampling value among six samples collected within the interface traffic statistics collection interval, that is, if the newest sampling value is greater than the currently displayed maximum rate, the maximum rate is updated to the newest sampling value. The sampling interval is the round-up result of traffic statistics collection interval divided by 6.

Output peak rate/Record time

Maximum rate of outgoing packets and time when the maximum rate is reached.
NOTE:

The maximum rate is the maximum sampling value among six samples collected within the interface traffic statistics collection interval, that is, if the newest sampling value is greater than the currently displayed maximum rate, the maximum rate is updated to the newest sampling value. The sampling interval is the round-up result of traffic statistics collection interval divided by 6.

Input

Total number and total bytes of received packets on an interface. Packets include correct packets (unicast, broadcast, and multicast packets), incorrect packets, and dropped packets.
  • 876952146048 bytes, 9329219248 packets: number of correctly packets and bytes. The number of packets is the sum of the unicast, broadcast, and multicast packets.
  • Number of correctly received packets and bytes. The packets include:
    • Unicast
    • Multicast
    • Broadcast
    • Jumbo: Number of packets with length ranging from 1518 bytes to the maximum jumbo frame size and correct FCS values.
    • Discard: Number of packets discarded by the interface during physical layer detection. The value is always 0.
    • Frames: Number of packets with the 802.3 length value different from the actual value.
    • Pause: Number of pause frames, including Priority-based Flow Control (PFC) pause frames.
    • Overrun: Number of dropped packets received by the MEth interface.
    • Over-car-pps: Number of discarded packets due to rate limit configured by running the qos lr pps command on the MEth interface.
  • Total Error: Number of received incorrect packets of the following types:
    • CRC: Number of CRC error packets with length that is greater than 64 bytes and less than 1518 bytes.
    • Giants: Number of received packets with length exceeding the maximum jumbo frame size and correct FCS values.
    • Jabbers: Number of received packets with length ranging from 1518 bytes to the maximum jumbo frame size and incorrect FCS values.
    • Fragments: Number of fragments received by the interface. Fragments are the received packets that are shorter than 64 bytes and have CRC errors.
    • Runts: Number of undersized frames with correct FCS values received by the interface. Undersized frames are the frames that are shorter than 64 bytes and have the correct format and valid CRC field.
    • DropEvents: Number of received packets that are discarded due to GBP full or back pressure.
    • Alignment: Number of received frames with alignment errors.
    • Symbols: Number of received frames with coding errors.
    • Ignoreds: Number of received MAC control frames whose OpCode is not PAUSE.
NOTE:
For CE6880-48S4Q2CQ-EI and CE6880-48T4Q2CQ-EI, meanings of the following fields differ from those on other switches:
  • Jumbo indicates the number of packets with length ranging from 1518 bytes to the maximum jumbo frame size.
  • The Total Error field displays --. CRC indicates the number of packets with length exceeding 64 bytes and incorrect FCS values. Giants indicates the number of received packets with length exceeding the maximum jumbo frame size. Runts indicates the number of received packets with length that is less than 64 bytes. The values of Jabbers and Fragments are 0.

Output

Total number and total bytes of sent packets on an interface. Packets include correct packets (unicast, broadcast, and multicast packets), incorrect packets, and dropped packets.
  • 1968304390465 bytes, 21888927861 packets: number of correctly packets and bytes. The number of packets is the sum of the unicast, broadcast, and multicast packets.
  • Number of correctly sent packets of the following types:
    • Unicast
    • Multicast
    • Broadcast
    • Jumbo: Number of packets with length ranging from 1518 bytes to the maximum jumbo frame size and correct FCS values. For 10GE1/0/1 to 10GE1/0/12 on CE6880-48S4Q2CQ-EI and CE6880-48T4Q2CQ-EI, this field displays --.
  • Number of sent incorrect packets and dropped packets of the following types:
    • Underrun: Number of dropped packets sent by the MEth interface.
    • Discard: Number of packets discarded by the interface during physical layer detection due to queue congestion.
    • Buffers Purged: Number of packets aged in the cache.
    • Pause: Number of pause frames.
NOTE:

When the CE6870EI uses the traffic statistics function to count known unicast packets on the outbound interface, the statistics on discarded packets include the packets that are discarded because MQC-based traffic policing, hierarchical traffic policing, traffic suppression, and storm control are applied in the inbound direction.

Input bandwidth utilization threshold

Threshold for inbound bandwidth usage.

Output bandwidth utilization threshold

Threshold for outbound bandwidth usage.

Last 300 seconds input utility rate

Inbound bandwidth usage within the last 300 seconds.

Last 300 seconds output utility rate

Outbound bandwidth usage within the last 300 seconds.

Table 8-4  Description of the Error-Down event

Cause of the Error-Down Event

Description

ERROR DOWN(auto-defend)

When receiving packets from an attack source, the interface is shut down.

ERROR DOWN(bpdu-protection)

After BPDU protection is enabled, the edge interface is shut down when receiving BPDU packets.

ERROR DOWN(crc-statistics)

If the number of received CRC error packets exceeds the threshold, the interface is shut down.

ERROR DOWN(dual-active-fault-event)

After a stack splits and experiences a DAD fault, all services ports except reserved ports on the switches that fail in DAD competition will be set to Error-Down state.

ERROR DOWN(forward-engine-buffer-failed)

If the interface buffer exception occurs, the interface is shut down.

ERROR DOWN(forward-engine-interface-failed)

The system detects that a fault occurs in the forwarding engine and the interface working status is unstable. As a result, packet loss may occur or traffic may fail to be forwarded, and the interface is shut down.

ERROR DOWN(link-flap)

When the link flaps, the physical status of the associated interface becomes Down.

ERROR DOWN(loopback-detect)

If a loop occurs on the network, the interface is shut down.

ERROR DOWN(m-lag-peer)

  • When M-LAG is used for dual-homing to a TRILL network and the peer-link fails but the heartbeat is normal, the M-LAG interfaces on the backup device will enter the error-down state. When the peer-link recovers, the physical interfaces change from error-down to Up after 2 minutes by default.

  • When M-LAG is used for dual-homing to an Ethernet, VXLAN network, or IP network and the peer-link fails but the heartbeat is normal, all physical interfaces except the management interface, peer-link interface, and stack interface on the backup device will enter the error-down state. When the peer-link recovers, the M-LAG interfaces change from error-down to Up after 2 minutes by default. Other physical interfaces go Up immediately by default.

ERROR DOWN(mac-address-flapping)

When the learned MAC address flaps, the interface changes to Down.

ERROR DOWN(monitor-link)

Indicates that the uplink interface in the Monitor Link group is in Down state or all interfaces in the upstream Smart Link group are in Down state so that the associated downstream interface is in Down state.

ERROR DOWN(portsec-reachedlimit)

When the number of learned MAC address entries reaches the limit, the interface changes to Down.

ERROR DOWN(resource-mismatch)

If a stack member switch that is starting uses a different resource mode than the master switch, or the port split configurations are inconsistent, all service ports except stack physical member ports will be set to Down. Resource modes include ARP resource allocation mode, Eth-Trunk quantity, tunnel mode, layer 3 resource allocation mode, large Layer 3 interface mode, and EEDB resource mode.

ERROR DOWN(spine-member-exceed-limit)

The number of parent switches in an SVF system exceeds the limit, and service ports of excess parent switches will be set to Down.

ERROR DOWN(spine-type-unsupported)

When the device that cannot function as a parent switch joins the stack set up by the parent switch of an SVF system, service ports of the device become Error-Down.

ERROR DOWN(stack-config-conflict)

During the setup of a stack, if other switches have the stack configuration that conflicts with the master switch, the stack may fail to be set up, and service ports of these switches (excluding the master switch) will become Down.

ERROR DOWN(stack-member-exceed-limit)

The number of member switches exceeds the limit, and ports of excess switches will be set to Down.

ERROR DOWN(stack-packet-defensive)

Physical member ports receive a large number of stack protocol packets or stack error packets within a short period.

ERROR DOWN(storm-control) After storm control is configured on an interface, in the interval for detecting storms, the interface is shut down when the average rate of received broadcast packets, multicast packets, and unknown unicast packets is larger than the value of the specified upper threshold.
ERROR DOWN(transceiver-power-low) If the optical power of the interface falls below the threshold, the interface is shut down.
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Updated: 2019-03-21

Document ID: EDOC1000166501

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