配置手工TE FRR示例
组网需求
如图4-57所示,主CR-LSP是LSRA→LSRB→LSRC→LSRD,要求对LSRB→LSRC这段链路通过FRR进行链路保护。
建立一条Bypass CR-LSP,使用路径LSRB→LSRE→LSRC。LSRB是本地修复节点PLR,LSRC是汇聚点MP。
要求使用显式路径方式建立MPLS TE的主隧道和旁路隧道。使用的信令协议是RSVP-TE。
配置思路
采用如下的思路配置手工TE FRR:
配置各接口的IP地址,全局使能IS-IS协议,配置网络实体名称。在各接口(包括Loopback接口)上使能IS-IS。
配置LSR ID并全局使能各节点以及接口的MPLS、MPLS TE、RSVP-TE、CSPF功能。使能IS-IS TE,改变cost类型。
在主隧道入节点创建隧道接口,配置隧道的IP地址、隧道协议、目的地址、隧道ID、动态信令协议RSVP-TE。
在入节点的主隧道接口下使能TE FRR。
在被保护链路的旁路隧道入节点即LSRB创建隧道接口,配置隧道的IP地址、隧道协议、目的地址、隧道ID、动态信令协议RSVP-TE,同时指定被保护链路的接口。
操作步骤
- 配置各接口的IP地址
# 配置LSRA。LSRB、LSRC、LSRD和LSRE的配置与LSRA类似,不再赘述。
<Huawei> system-view [Huawei] sysname LSRA [LSRA] interface gigabitethernet 1/0/0 [LSRA-GigabitEthernet1/0/0] ip address 172.1.1.1 255.255.255.0 [LSRA-GigabitEthernet1/0/0] quit [LSRA] interface loopback 1 [LSRA-LoopBack1] ip address 1.1.1.9 255.255.255.255 [LSRA-LoopBack1] quit
- 配置IS-IS协议发布路由
# 配置LSRA。LSRB、LSRC、LSRD和LSRE的配置与LSRA类似,不再赘述。
[LSRA] isis 1 [LSRA-isis-1] network-entity 00.0005.0000.0000.0001.00 [LSRA-isis-1] is-level level-2 [LSRA-isis-1] quit [LSRA] interface gigabitethernet 1/0/0 [LSRA-GigabitEthernet1/0/0] isis enable 1 [LSRA-GigabitEthernet1/0/0] quit [LSRA] interface loopback 1 [LSRA-LoopBack1] isis enable 1 [LSRA-LoopBack1] quit
配置完成后,在各节点上执行display ip routing-table命令,可以看到相互之间都学到了到对方的路由。以LSRA的显示为例:
[LSRA] display ip routing-table Route Flags: R - relay, D - download to fib ------------------------------------------------------------------------------ Routing Tables: Public Destinations : 16 Routes : 16 Destination/Mask Proto Pre Cost Flags NextHop Interface 1.1.1.9/32 Direct 0 0 D 127.0.0.1 LoopBack1 2.2.2.9/32 ISIS-L2 15 10 D 172.1.1.2 GigabitEthernet1/0/0 3.3.3.9/32 ISIS-L2 15 20 D 172.1.1.2 GigabitEthernet1/0/0 4.4.4.9/32 ISIS-L2 15 30 D 172.1.1.2 GigabitEthernet1/0/0 5.5.5.9/32 ISIS-L2 15 20 D 172.1.1.2 GigabitEthernet1/0/0 127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0 127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0 127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0 172.1.1.0/24 Direct 0 0 D 172.1.1.1 GigabitEthernet1/0/0 172.1.1.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet1/0/0 172.1.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet1/0/0 172.2.1.0/24 ISIS-L2 15 20 D 172.1.1.2 GigabitEthernet1/0/0 172.3.1.0/24 ISIS-L2 15 30 D 172.1.1.2 GigabitEthernet1/0/0 172.4.1.0/24 ISIS-L2 15 20 D 172.1.1.2 GigabitEthernet1/0/0 172.5.1.0/24 ISIS-L2 15 30 D 172.1.1.2 GigabitEthernet1/0/0 255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
- 配置MPLS基本能力,使能MPLS TE、CSPF和RSVP-TE及IS-IS TE
# 配置LSRA。LSRB、LSRC、LSRD和LSRE的配置与LSRA类似,不再赘述。其中,CSPF只要在主隧道入节点LSRA和旁路隧道入节点LSRB上使能即可,LSRC、LSRD和LSRE上无需使能CSPF。
[LSRA] mpls lsr-id 1.1.1.9 [LSRA] mpls [LSRA-mpls] mpls te [LSRA-mpls] mpls rsvp-te [LSRA-mpls] mpls te cspf [LSRA-mpls] quit [LSRA] interface gigabitethernet 1/0/0 [LSRA-GigabitEthernet1/0/0] mpls [LSRA-GigabitEthernet1/0/0] mpls te [LSRA-GigabitEthernet1/0/0] mpls rsvp-te [LSRA-GigabitEthernet1/0/0] quit [LSRA] isis [LSRA-isis-1] cost-style wide [LSRA-isis-1] traffic-eng level-2 [LSRA-isis-1] quit
- 在入节点LSRA上创建主CR-LSP的MPLS TE Tunnel
# 配置主CR-LSP的显式路径。
[LSRA] explicit-path pri-path [LSRA-explicit-path-pri-path] next hop 172.1.1.2 [LSRA-explicit-path-pri-path] next hop 172.2.1.2 [LSRA-explicit-path-pri-path] next hop 172.3.1.2 [LSRA-explicit-path-pri-path] next hop 4.4.4.9 [LSRA-explicit-path-pri-path] quit
# 配置主CR-LSP的MPLS TE隧道接口。
[LSRA] interface tunnel 0/0/1 [LSRA-Tunnel0/0/1] ip address unnumbered interface loopback 1 [LSRA-Tunnel0/0/1] tunnel-protocol mpls te [LSRA-Tunnel0/0/1] destination 4.4.4.9 [LSRA-Tunnel0/0/1] mpls te tunnel-id 100 [LSRA-Tunnel0/0/1] mpls te signal-protocol rsvp-te [LSRA-Tunnel0/0/1] mpls te path explicit-path pri-path
# 使能TE FRR。
[LSRA-Tunnel0/0/1] mpls te fast-reroute [LSRA-Tunnel0/0/1] mpls te commit [LSRA-Tunnel0/0/1] quit
配置完成后,在LSRA上执行display interface tunnel命令,可以看到Tunnel0/0/1的状态为Up。
[LSRA] display interface tunnel 0/0/1 Tunnel0/0/1 current state : UP Line protocol current state : UP Last line protocol up time : 2013-01-21 10:58:49 Description: ...
在LSRA上执行display mpls te tunnel verbose命令,可以看到隧道接口的详细信息。
[LSRA] display mpls te tunnel verbose No : 1 Tunnel-Name : Tunnel0/0/1 Tunnel Interface Name : Tunnel0/0/1 TunnelIndex : 0 LSP Index : 2048 Session ID : 100 LSP ID : 3 LSR Role : Ingress LSP Type : Primary Ingress LSR ID : 1.1.1.9 Egress LSR ID : 4.4.4.9 In-Interface : - Out-Interface : GE1/0/0 Sign-Protocol : RSVP TE Resv Style : SE IncludeAnyAff : 0x0 ExcludeAnyAff : 0x0 IncludeAllAff : 0x0 LspConstraint : - ER-Hop Table Index : 1 AR-Hop Table Index: 0 C-Hop Table Index : 1 PrevTunnelIndexInSession: - NextTunnelIndexInSession: - PSB Handle : 16478 Created Time : 2013/01/21 12:00:51 RSVP LSP Type : - -------------------------------- DS-TE Information -------------------------------- Bandwidth Reserved Flag : Unreserved CT0 Bandwidth(Kbit/sec) : 0 CT1 Bandwidth(Kbit/sec): 0 CT2 Bandwidth(Kbit/sec) : 0 CT3 Bandwidth(Kbit/sec): 0 CT4 Bandwidth(Kbit/sec) : 0 CT5 Bandwidth(Kbit/sec): 0 CT6 Bandwidth(Kbit/sec) : 0 CT7 Bandwidth(Kbit/sec): 0 Setup-Priority : 7 Hold-Priority : 7 -------------------------------- FRR Information -------------------------------- Primary LSP Info TE Attribute Flag : 0x63 Protected Flag : 0x0 Bypass In Use : Not Exists Bypass Tunnel Id : - BypassTunnel : - Bypass LSP ID : - FrrNextHop : - ReferAutoBypassHandle : - FrrPrevTunnelTableIndex : - FrrNextTunnelTableIndex: - Bypass Attribute(Not configured) Setup Priority : - Hold Priority : - HopLimit : - Bandwidth : - IncludeAnyGroup : - ExcludeAnyGroup : - IncludeAllGroup : - Bypass Unbound Bandwidth Info(Kbit/sec) CT0 Unbound Bandwidth : - CT1 Unbound Bandwidth: - CT2 Unbound Bandwidth : - CT3 Unbound Bandwidth: - CT4 Unbound Bandwidth : - CT5 Unbound Bandwidth: - CT6 Unbound Bandwidth : - CT7 Unbound Bandwidth: - -------------------------------- BFD Information -------------------------------- NextSessionTunnelIndex : - PrevSessionTunnelIndex: - NextLspId : - PrevLspId : -
- 在作为PLR的LSRB上配置Bypass CR-LSP
# 配置Bypass CR-LSP的显式路径。
[LSRB] explicit-path by-path [LSRB-explicit-path-by-path] next hop 172.4.1.2 [LSRB-explicit-path-by-path] next hop 172.5.1.2 [LSRB-explicit-path-by-path] next hop 3.3.3.9 [LSRB-explicit-path-by-path] quit
# 配置Bypass CR-LSP的隧道接口。
[LSRB] interface tunnel 0/0/2 [LSRB-Tunnel0/0/2] ip address unnumbered interface loopback 1 [LSRB-Tunnel0/0/2] tunnel-protocol mpls te [LSRB-Tunnel0/0/2] destination 3.3.3.9 [LSRB-Tunnel0/0/2] mpls te tunnel-id 300 [LSRB-Tunnel0/0/2] mpls te signal-protocol rsvp-te [LSRB-Tunnel0/0/2] mpls te path explicit-path by-path [LSRB-Tunnel0/0/2] mpls te bypass-tunnel
# 将Bypass CR-LSP绑定到被保护的接口。
[LSRB-Tunnel0/0/2] mpls te protected-interface gigabitethernet 2/0/0 [LSRB-Tunnel0/0/2] mpls te commit [LSRB-Tunnel0/0/2] quit
配置完成后,在LSRB上执行display interface tunnel命令可以看到接口Tunnel0/0/2的状态为Up。
在节点上执行display mpls lsp命令,可以看到LSP表项,并且LSRB和LSRC上有两条CR-LSP经过。
[LSRA] display mpls lsp ---------------------------------------------------------------------- LSP Information: RSVP LSP ---------------------------------------------------------------------- FEC In/Out Label In/Out IF Vrf Name 4.4.4.9/32 NULL/1032 -/GE1/0/0
[LSRB] display mpls lsp ---------------------------------------------------------------------- LSP Information: RSVP LSP ---------------------------------------------------------------------- FEC In/Out Label In/Out IF Vrf Name 4.4.4.9/32 1032/1040 GE1/0/0/GE2/0/0 3.3.3.9/32 NULL/1025 -/GE3/0/0
[LSRC] display mpls lsp ---------------------------------------------------------------------- LSP Information: RSVP LSP ---------------------------------------------------------------------- FEC In/Out Label In/Out IF Vrf Name 4.4.4.9/32 1040/3 GE1/0/0/GE2/0/0 3.3.3.9/32 3/NULL GE3/0/0/-
[LSRD] display mpls lsp ---------------------------------------------------------------------- LSP Information: RSVP LSP ---------------------------------------------------------------------- FEC In/Out Label In/Out IF Vrf Name 4.4.4.9/32 3/NULL GE1/0/0/-
[LSRE] display mpls lsp ---------------------------------------------------------------------- LSP Information: RSVP LSP ---------------------------------------------------------------------- FEC In/Out Label In/Out IF Vrf Name 3.3.3.9/32 1025/3 GE1/0/0/GE2/0/0
在节点上执行display mpls te tunnel命令,可以看到隧道的建立情况,LSRB和LSRC上有两条隧道经过。
[LSRA] display mpls te tunnel ------------------------------------------------------------------------------ Ingress LsrId Destination LSPID In/Out Label R Tunnel-name ------------------------------------------------------------------------------ 1.1.1.9 4.4.4.9 3 --/1032 I Tunnel0/0/1
[LSRB] display mpls te tunnel ------------------------------------------------------------------------------ Ingress LsrId Destination LSPID In/Out Label R Tunnel-name ------------------------------------------------------------------------------ 1.1.1.9 4.4.4.9 3 1032/1040 T Tunnel0/0/1 2.2.2.9 3.3.3.9 2 --/1025 I Tunnel0/0/2
[LSRC] display mpls te tunnel ------------------------------------------------------------------------------ Ingress LsrId Destination LSPID In/Out Label R Tunnel-name ------------------------------------------------------------------------------ 2.2.2.9 3.3.3.9 2 3/-- E Tunnel0/0/2 1.1.1.9 4.4.4.9 3 1040/3 T Tunnel0/0/1
[LSRD] display mpls te tunnel ------------------------------------------------------------------------------ Ingress LsrId Destination LSPID In/Out Label R Tunnel-name ------------------------------------------------------------------------------ 1.1.1.9 4.4.4.9 3 3/-- E Tunnel0/0/1
[LSRE] display mpls te tunnel ------------------------------------------------------------------------------ Ingress LsrId Destination LSPID In/Out Label R Tunnel-name ------------------------------------------------------------------------------ 2.2.2.9 3.3.3.9 2 1025/3 T Tunnel0/0/2
在LSRB上执行display mpls te tunnel name Tunnel0/0/1 verbose命令,可以看到旁路隧道绑定到出接口GE2/0/0,目前未被使用。
[LSRB] display mpls te tunnel name Tunnel0/0/1 verbose No : 1 Tunnel-Name : Tunnel0/0/1 Tunnel Interface Name : - TunnelIndex : 1 LSP Index : 4098 Session ID : 100 LSP ID : 3 LSR Role : Transit Ingress LSR ID : 1.1.1.9 Egress LSR ID : 4.4.4.9 In-Interface : GE1/0/0 Out-Interface : GE2/0/0 Sign-Protocol : RSVP TE Resv Style : SE IncludeAnyAff : 0x0 ExcludeAnyAff : 0x0 IncludeAllAff : 0x0 ER-Hop Table Index : 1 AR-Hop Table Index: 0 C-Hop Table Index : - PrevTunnelIndexInSession: - NextTunnelIndexInSession: - PSB Handle : 16480 Created Time : 2013/01/19 03:00:58 RSVP LSP Type : - -------------------------------- DS-TE Information -------------------------------- Bandwidth Reserved Flag : Unreserved CT0 Bandwidth(Kbit/sec) : 0 CT1 Bandwidth(Kbit/sec): 0 CT2 Bandwidth(Kbit/sec) : 0 CT3 Bandwidth(Kbit/sec): 0 CT4 Bandwidth(Kbit/sec) : 0 CT5 Bandwidth(Kbit/sec): 0 CT6 Bandwidth(Kbit/sec) : 0 CT7 Bandwidth(Kbit/sec): 0 Setup-Priority : 7 Hold-Priority : 7 -------------------------------- FRR Information -------------------------------- Primary LSP Info TE Attribute Flag : 0x63 Protected Flag : 0x1 Bypass In Use : Not Used Bypass Tunnel Id : 15 BypassTunnel : Tunnel Index[Tunnel0/0/2], InnerLabel[1040] Bypass LSP ID : 2 FrrNextHop : 172.5.1.2 ReferAutoBypassHandle : - FrrPrevTunnelTableIndex : - FrrNextTunnelTableIndex: - Bypass Attribute(Not configured) Setup Priority : - Hold Priority : - HopLimit : - Bandwidth : - IncludeAnyGroup : - ExcludeAnyGroup : - IncludeAllGroup : - Bypass Unbound Bandwidth Info(Kbit/sec) CT0 Unbound Bandwidth : - CT1 Unbound Bandwidth: - CT2 Unbound Bandwidth : - CT3 Unbound Bandwidth: - CT4 Unbound Bandwidth : - CT5 Unbound Bandwidth: - CT6 Unbound Bandwidth : - CT7 Unbound Bandwidth: - -------------------------------- BFD Information -------------------------------- NextSessionTunnelIndex : - PrevSessionTunnelIndex: - NextLspId : - PrevLspId : -
- 验证配置结果
# 使PLR上被保护的出接口失效。
[LSRB] interface gigabitethernet 2/0/0 [LSRB-GigabitEthernet2/0/0] shutdown
# 在LSRA上执行命令display interface tunnel 0/0/1,查看主CR-LSP的状态,可以看到Tunnel接口仍然处于UP状态。
[LSRA] display interface tunnel 0/0/1 Tunnel0/0/1 current state : UP Line protocol current state : UP Last line protocol up time : 2013-01-21 10:58:49 Description: ...
# 在LSRA上执行tracert lsp te tunnel 0/0/1命令来查看隧道经过的路径。[LSRA] tracert lsp te tunnel 0/0/1 LSP Trace Route FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel0/0/1 , press CTRL_C t o break. TTL Replier Time Type Downstream 0 Ingress 172.1.1.2/[1032 ] 1 172.1.1.2 2 ms Transit 172.4.1.2/[1040 1025 ] 2 172.4.1.2 2 ms Transit 172.5.1.2/[3 ] 3 172.5.1.2 1 ms Transit 172.3.1.2/[3 ] 4 4.4.4.9 11 ms Egress
# 由此可以确认链路已切换到Bypass CR-LSP。
如果在TE FRR切换后马上执行display mpls te tunnel-interface命令查看隧道接口的详细信息,会看到两条处于Up状态的CR-LSP。这是因为TE FRR采用Make-before-break方式建立新的CR-LSP,旧的CR-LSP在新CR-LSP建立成功后过一段时间才被删除。
# 在LSRB上执行display mpls te tunnel name Tunnel0/0/1 verbose命令,可以看到旁路隧道被使用。
[LSRB] display mpls te tunnel name Tunnel0/0/1 verbose No : 1 Tunnel-Name : Tunnel0/0/1 Tunnel Interface Name : - TunnelIndex : 1 LSP Index : 4098 Session ID : 100 LSP ID : 3 LSR Role : Transit Ingress LSR ID : 1.1.1.9 Egress LSR ID : 4.4.4.9 In-Interface : GE1/0/0 Out-Interface : GE2/0/0 Sign-Protocol : RSVP TE Resv Style : SE IncludeAnyAff : 0x0 ExcludeAnyAff : 0x0 IncludeAllAff : 0x0 ER-Hop Table Index : - AR-Hop Table Index: 2 C-Hop Table Index : - PrevTunnelIndexInSession: - NextTunnelIndexInSession: - PSB Handle : 16509 Created Time : 2013/01/19 06:28:59 RSVP LSP Type : - -------------------------------- DS-TE Information -------------------------------- Bandwidth Reserved Flag : Unreserved CT0 Bandwidth(Kbit/sec) : 0 CT1 Bandwidth(Kbit/sec): 0 CT2 Bandwidth(Kbit/sec) : 0 CT3 Bandwidth(Kbit/sec): 0 CT4 Bandwidth(Kbit/sec) : 0 CT5 Bandwidth(Kbit/sec): 0 CT6 Bandwidth(Kbit/sec) : 0 CT7 Bandwidth(Kbit/sec): 0 Setup-Priority : 0 Hold-Priority : 0 -------------------------------- FRR Information -------------------------------- Primary LSP Info TE Attribute Flag : 0x63 Protected Flag : 0x1 Bypass In Use : In Use Bypass Tunnel Id : 15 BypassTunnel : Tunnel Index[Tunnel0/0/2], InnerLabel[1040] Bypass LSP ID : 2 FrrNextHop : 172.5.1.2 ReferAutoBypassHandle : - FrrPrevTunnelTableIndex : - FrrNextTunnelTableIndex: - Bypass Attribute(Not configured) Setup Priority : - Hold Priority : - HopLimit : - Bandwidth : - IncludeAnyGroup : - ExcludeAnyGroup : - IncludeAllGroup : - Bypass Unbound Bandwidth Info(Kbit/sec) CT0 Unbound Bandwidth : - CT1 Unbound Bandwidth: - CT2 Unbound Bandwidth : - CT3 Unbound Bandwidth: - CT4 Unbound Bandwidth : - CT5 Unbound Bandwidth: - CT6 Unbound Bandwidth : - CT7 Unbound Bandwidth: - -------------------------------- BFD Information -------------------------------- NextSessionTunnelIndex : - PrevSessionTunnelIndex: - NextLspId : - PrevLspId : -
# 在PLR上配置TE FRR的扫描定时器的扫描时间间隔权值为120。
[LSRB] mpls [LSRB-mpls] mpls te timer fast-reroute 120 [LSRB-mpls] quit
# 使PLR上被保护的出接口重新生效。
[LSRB] interface gigabitethernet 2/0/0 [LSRB-GigabitEthernet2/0/0] undo shutdown
# 在LSRA上查看主CR-LSP的状态,执行命令display interface tunnel 0/0/1,可以看到Tunnel接口处于Up状态。
# 等待一段时间后,在LSRB上执行display mpls te tunnel name Tunnel0/0/1 verbose命令,可以看到Tunnel0/0/1的Bypass In Use的状态为Not Used,表明数据流已切回到GE2/0/0传输。
配置文件
LSRA的配置文件
# sysname LSRA # mpls lsr-id 1.1.1.9 mpls mpls te mpls rsvp-te mpls te cspf # explicit-path pri-path next hop 172.1.1.2 next hop 172.2.1.2 next hop 172.3.1.2 next hop 4.4.4.9 # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0001.00 traffic-eng level-2 # interface GigabitEthernet1/0/0 ip address 172.1.1.1 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 1.1.1.9 255.255.255.255 isis enable 1 # interface Tunnel0/0/1 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 4.4.4.9 mpls te record-route label mpls te path explicit-path pri-path mpls te tunnel-id 100 mpls te fast-reroute mpls te commit # return
LSRB的配置文件
# sysname LSRB # mpls lsr-id 2.2.2.9 mpls mpls te mpls te timer fast-reroute 120 mpls rsvp-te mpls te cspf # explicit-path by-path next hop 172.4.1.2 next hop 172.5.1.2 next hop 3.3.3.9 # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0002.00 traffic-eng level-2 # interface GigabitEthernet1/0/0 ip address 172.1.1.2 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.2.1.1 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface GigabitEthernet3/0/0 ip address 172.4.1.1 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 2.2.2.9 255.255.255.255 isis enable 1 # interface Tunnel0/0/2 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 3.3.3.9 mpls te tunnel-id 300 mpls te record-route mpls te path explicit-path by-path mpls te bypass-tunnel mpls te protected-interface GigabitEthernet2/0/0 mpls te commit # return
LSRC的配置文件
# sysname LSRC # mpls lsr-id 3.3.3.9 mpls mpls te mpls rsvp-te # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0003.00 traffic-eng level-2 # interface GigabitEthernet1/0/0 ip address 172.2.1.2 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.3.1.1 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface GigabitEthernet3/0/0 ip address 172.5.1.2 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 3.3.3.9 255.255.255.255 isis enable 1 # return
LSRD的配置文件
# sysname LSRD # mpls lsr-id 4.4.4.9 mpls mpls te mpls rsvp-te # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0004.00 traffic-eng level-2 # interface GigabitEthernet1/0/0 ip address 172.3.1.2 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 4.4.4.9 255.255.255.255 isis enable 1 # return
LSRE的配置文件
# sysname LSRE # mpls lsr-id 5.5.5.9 mpls mpls te mpls rsvp-te # isis 1 is-level level-2 cost-style wide network-entity 00.0005.0000.0000.0005.00 traffic-eng level-2 # interface GigabitEthernet1/0/0 ip address 172.4.1.2 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.5.1.1 255.255.255.0 isis enable 1 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 5.5.5.9 255.255.255.255 isis enable 1 # return