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[Hub-PE-ospf-1] area 0
[Hub-PE-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255
[Hub-PE-ospf-1-area-0.0.0.0] network 172.2.1.0 0.0.0.255
[Hub-PE-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0
[Hub-PE-ospf-1-area-0.0.0.0] quit
[Hub-PE-ospf-1] quit
# Execute the display ospf peer command on the devices to verify that OSPF adjacencies in
Full state have been established between Spoke-PE 1, Spoke-PE 2, and Hub-PE. Execute the
display ip routing-table command on the devices to verify that the PEs have learned the
routes to the loopback interfaces of each other. (Details not shown.)
2.
Configure basic MPLS and MPLS LDP on the MPLS backbone to establish LDP LSPs:
# Configure Spoke-PE 1.
[Spoke-PE1] mpls lsr-id 1.1.1.9
[Spoke-PE1] mpls ldp
[Spoke-PE1-ldp] quit
[Spoke-PE1] interface pos 2/2/0
[Spoke-PE1-Pos2/2/0] mpls enable
[Spoke-PE1-Pos2/2/0] mpls ldp enable
[Spoke-PE1-Pos2/2/0] quit
# Configure Spoke-PE 2.
[Spoke-PE2] mpls lsr-id 3.3.3.9
[Spoke-PE2] mpls ldp
[Spoke-PE2-ldp] quit
[Spoke-PE2] interface pos 2/2/0
[Spoke-PE2-Pos2/2/0] mpls enable
[Spoke-PE2-Pos2/2/0] mpls ldp enable
[Spoke-PE2-Pos2/2/0] quit
# Configure Hub-PE.
[Hub-PE] mpls lsr-id 2.2.2.9
[Hub-PE] mpls ldp
[Hub-PE-ldp] quit
[Hub-PE] interface pos 2/2/0
[Hub-PE-Pos2/2/0] mpls enable
[Hub-PE-Pos2/2/0] mpls ldp enable
[Hub-PE-Pos2/2/0] quit
[Hub-PE] interface pos 2/2/1
[Hub-PE-Pos2/2/1] mpls enable
[Hub-PE-Pos2/2/1] mpls ldp enable
[Hub-PE-Pos2/2/1] quit
# Execute the display mpls ldp peer command on the devices to verify that that LDP sessions
in Operational state have been established between Spoke-PE 1, Spoke-PE 2, and Hub-PE.
Execute the display mpls ldp lsp command on the devices to verify that the LSPs have been
established by LDP. (Details not shown.)
3.
Configure VPN instances on the Spoke-PEs and Hub-PE:
# Configure Spoke-PE 1.
[Spoke-PE1] ip vpn-instance vpn1
[Spoke-PE1-vpn-instance-vpn1] route-distinguisher 100:1
[Spoke-PE1-vpn-instance-vpn1] vpn-target 111:1 import-extcommunity
[Spoke-PE1-vpn-instance-vpn1] vpn-target 222:2 export-extcommunity
253
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