Establishing The Configuration Task; Enabling Ldp Gr - Huawei AR1200 Series Configuration Manual - Mpls

Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS

2.11.1 Establishing the Configuration Task

Before configuring LDP GR, familiarize yourself with the applicable environment, complete
the pre-configuration tasks, and obtain the required data.
Applicable Environment
It is necessary to enable LDP GR to maintain normal forwarding and resume the LDP session
and establish LSPs after the switchover and system update.
Pre-configuration Tasks
Before configuring LDP GR, complete the following tasks:
l
l
Data Preparation
To configure LDP GR, you need the following data.
No.
1
2
3
4

2.11.2 Enabling LDP GR

To enable LDP GR, configure both the GR Restarter and its neighbor.
Context
Perform the following steps on the LDP GR Restarter and its neighbor nodes:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Issue 01 (2011-12-30)
NOTE
In practical applications, the system-level GR is usually configured in the hardware environment with dual
main control boards. In this manner, the service can be forwarded when the main control board fails.
The AR1200 can function as only the Helper router, but cannot function as the Restarter router.
Configuring the IGP GR function
Configuring the local MPLS LDP session
Data
MPLS LSR ID of the local node
Value of the Reconnect timer of the LDP session (optional)
Value of the LDP Neighbor-liveness timer (optional)
Value of the LDP Recovery timer (optional)
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