Huawei AR1200 Series - Example for Configuring Synchronization between LDP and IGP

summary 1.3.0.0 255.255.255.0 avoid-feedback
#
interface Ethernet1/0/0
ip address 20.1.1.1 255.255.255.0
isis enable 1
isis circuit-level level-1
mpls
mpls ldp
#
interface Ethernet1/0/1
ip address 10.1.1.2 255.255.255.0
isis enable 1
isis circuit-level level-2
mpls
mpls ldp
#
interface Ethernet2/0/0
ip address 20.1.2.1 255.255.255.0
isis enable 1
isis circuit-level level-1
mpls
mpls ldp
#
interface LoopBack0
ip address 1.2.0.1 255.255.255.255
isis enable 1
#
return
2.13.9 Example for Configuring Synchronization Between LDP and
IGP
This section provides an example for configuring LDP and IGP synchronization. The procedure
consists of enabling MPLS and MPLS LDP on each device and each interface and configuring
the interfaces of both ends of the link between the crossing node of active and standby links and
the LDP neighboring node.
Networking Requirements
As shown in Figure 2-14, two links are established between PE1 and PE2. The link PE1 -> P1
-> P2 -> PE2 is an active link and the link PE1 -> P1 -> P3 -> PE2 is a standby link.
Configure synchronization between LDP and IGP on the P1 and P2 interfaces. P1 is the crossing
node of active and standby links and P2 is the LDP neighbor node of the active link. After the
active link recovers from the fault, configuring synchronization can shorten the time that it takes
to switch traffic from the standby link to the active link to within milliseconds.
Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS 2 MPLS LDP Configuration
Issue 01 (2011-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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