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routing-table command. The output shows that the PEs have learned the routes to the loopback
interfaces of each other. Take PE 1 as an example:
[PE1] display ip routing-table
Routing Tables: Public
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost NextHop Interface
1.1.1.9/32 Direct 0 0 127.0.0.1 InLoop0
2.2.2.9/32 OSPF 10 1 172.1.1.2 Vlan13
3.3.3.9/32 OSPF 10 2 172.1.1.2 Vlan13
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
172.1.1.0/24 Direct 0 0 172.1.1.1 Vlan13
172.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
172.2.1.0/24 OSPF 10 1 172.1.1.2 Vlan13
[PE1] display ospf peer verbose
OSPF Process 1 with Router ID 1.1.1.9
Neighbors
Area 0.0.0.0 interface 172.1.1.1(Vlan-interface13)'s neighbors
Router ID: 172.1.1.2 Address: 172.1.1.2 GR State: Normal
State: Full Mode:Nbr is Master Priority: 1
DR: 172.1.1.1 BDR: 172.1.1.2 MTU: 0
Dead timer due in 38 sec
Neighbor is up for 00:02:44
Authentication Sequence: [ 0 ]
Neighbor state change count: 5
2. Configure basic MPLS and MPLS LDP on the MPLS backbone to establish LDP LSPs:
# Configure PE 1.
[PE1] mpls lsr-id 1.1.1.9
[PE1] mpls
[PE1-mpls] quit
[PE1] mpls ldp
[PE1-mpls-ldp] quit
[PE1] interface vlan-interface 13
[PE1-Vlan-interface13] mpls
[PE1-Vlan-interface13] mpls ldp
[PE1-Vlan-interface13] quit
# Configure the P device.
[P] mpls lsr-id 2.2.2.9
[P] mpls
[P-mpls] quit
[P] mpls ldp
[P-mpls-ldp] quit
[P] interface vlan-interface 13
[P-Vlan-interface13] mpls
[P-Vlan-interface13] mpls ldp
[P-Vlan-interface13] quit
[P] interface vlan-interface 12
[P-Vlan-interface12] mpls