R211x-HP Flexfabric 11900 MPLS Configuration Guide

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Configuring LDP PW redundancy
Network requirements
Create two LDP PWs to implement PW redundancy between CE 1 and CE 2. The primary PW goes
through PE 1—PE 2. The backup PW goes through PE 1—PE 3. When the primary PW fails, CE 1 and
CE 2 communicate through the backup PW.
Figure 71 Network diagram
Device Interface IP address Device Interface IP address
CE 1 Vlan-int10 100.1.1.1/24 PE 2 Loop0 2.2.2.2/32
PE 1 Loop0 1.1.1.1/32 Vlan-int10 -
Vlan-int10 - Vlan-int12 12.1.1.2/24
Vlan-int12 12.1.1.1/24 PE 3 Loop0 3.3.3.3/32
Vlan-int13 13.1.1.1/24 Vlan-int10 -
CE 2 Vlan-int10 100.1.1.2/24 Vlan-int13 13.1.1.3/24
Configuration procedure
Before you perform the following configurations, configure VLANs and add ports to VLANs on switches.
1. Configure CE 1.
<CE1> system-view
[CE1] interface vlan-interface 10
[CE1-Vlan-interface10] ip address 100.1.1.1 24
[CE1-Vlan-interface10] quit
2. Configure PE 1:
# Configure an LSR ID.
<PE1> system-view
[PE1] interface loopback 0
[PE1-LoopBack0] ip address 1.1.1.1 32
[PE1-LoopBack0] quit
[PE1] mpls lsr-id 1.1.1.1
# Enable global MPLS LDP.