4000 Router Series MPLS Configuration Guide

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Eth1/1 10.1.1.2/24

POS5/1

172.2.1.1/24

Eth1/2 10.2.1.2/24 PE 2 Loop0 3.3.3.9/32

POS5/0 172.1.1.1/24

Eth1/1

10.3.1.2/24

CE 2 Eth1/1 10.2.1.1/24

Eth1/2

10.4.1.2/24

CE 3 Eth1/1 10.3.1.1/24 POS5/0 172.2.1.2/24

CE 4 Eth1/1 10.4.1.1/24

Configuration procedure

1. Configure OSPF on the MPLS backbone to ensure IP connectivity within the backbone:

# Configure PE 1.

<PE1> system-view

[PE1] interface loopback 0

[PE1-LoopBack0] ip address 1.1.1.9 32

[PE1-LoopBack0] quit

[PE1] interface pos 5/0

[PE1-POS5/0] ip address 172.1.1.1 24

[PE1-POS5/0] quit

[PE1] ospf

[PE1-ospf-1] area 0

[PE1-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255

[PE1-ospf-1-area-0.0.0.0] network 1.1.1.9 0.0.0.0

[PE1-ospf-1-area-0.0.0.0] quit

[PE1-ospf-1] quit

# Configure the P device.

<P> system-view

[P] interface loopback 0

[P-LoopBack0] ip address 2.2.2.9 32

[P-LoopBack0] quit

[P] interface pos 5/0

[P-POS5/0] ip address 172.1.1.2 24

[P-POS5/0] quit

[P] interface pos 5/1

[P-POS5/1] ip address 172.2.1.1 24

[P-POS5/1] quit

[P] ospf

[P-ospf-1] area 0

[P-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255

[P-ospf-1-area-0.0.0.0] network 172.2.1.0 0.0.0.255

[P-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0

[P-ospf-1-area-0.0.0.0] quit

[P-ospf-1] quit

# Configure PE 2.

<PE2> system-view

[PE2] interface loopback 0

[PE2-LoopBack0] ip address 3.3.3.9 32

[PE2-LoopBack0] quit

[PE2] interface pos 5/0