配置靜態LSP
如下圖所示,LSR A、LSR B、LSR C、LSR D爲骨幹網絡,要求在骨幹網上創建公網隧道來承載L2VPN業務,其中LSR A到LSR D的路徑爲LSR A-LSR B-LSR D,從LSR D-LSR C-LSR A;
配置接口IP地址:
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 12.1.1.1 24
配置OSPF協議:
[r1]ospf 100
[r1-ospf-100]area 0
[r1-ospf-100-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[r1-ospf-100-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[r1-ospf-100-area-0.0.0.0]network 14.1.1.0 0.0.0.255
[r1-ospf-100-area-0.0.0.0]quit
[r1-ospf-100]quit
配置節點使用MPLS功能:
[r1]mpls lsr-id 1.1.1.1
[r1]mpls
配置接口MPLS功能:
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]mpls
配置LSR A-LSR D的靜態LSP:
[r1]static-lsp ingress atod destination 4.4.4.4 32 nexthop 12.1.1.2 out-label 20
[r2]static-lsp transit atod incoming-interface g0/0/0 in-label 20 nexthop 23.1.1.2 out-label 40
[r3]static-lsp egress atod incoming-interface g0/0/1 in-label 40
配置LSR D-LSR A的靜態LSP:
[r3]static-lsp ingress dtoa destination 1.1.1.1 32 nexthop 34.1.1.2 out-label 30
[r4]static-lsp transit dtoa incoming-interface g0/0/0 in-label 30 nexthop 14.1.1.1 out-label 60
[r1]static-lsp egress dtoa incoming-interface g0/0/1 in-label 60
查看配置結果:
[r3]display mpls static-lsp
TOTAL : 2 STATIC LSP(S)
UP : 2 STATIC LSP(S)
DOWN : 0 STATIC LSP(S)
Name FEC I/O Label I/O If Status
atod -/- 40/NULL GE0/0/1/- Up
dtoa 1.1.1.1/32 NULL/30 -/GE0/0/0 Up
[r2]display mpls static-lsp verbose
No : 1
LSP-Name : atod
LSR-Type : Transit
FEC : -/-
In-Label : 20
Out-Label : 40
In-Interface : GigabitEthernet0/0/0
Out-Interface : GigabitEthernet0/0/1
NextHop : 23.1.1.2
Static-Lsp Type: Normal
Lsp Status : Up