Configuring Igp Gr On The Backbone Network - Huawei quidway s7700 Configuration Manual

Quidway S7700 Smart Routing Switch
Configuration Guide - VPN
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3.13.2 Configuring IGP GR on the Backbone Network

You can configure IGP GR based on the specific IGP running on the backbone network. IGP
GR can be IS-IS GR or OSPF GR.
Context
Procedure
l
Issue 01 (2011-07-15)
Data
(Optional) Interval for re-establishing the GR session (by default, it is 300 seconds)
if the IS-IS GR is enabled
(Optional) Interval for the GR time if the OSPF GR is enabled
Reconnection time of the MPLS LDP session (by default, it is 300 seconds)
Validity period of the MPLS LDP neighbors (by default, it is 600 seconds)
Maximum time of BGP session reestablishment (by default, it is 150 seconds)
Time of waiting for the End-of-Rib messages(by default, it is 600 seconds)
NOTE
When configuring GR on the backbone network, configure the corresponding IGP GR (IS-IS GR or OSPF
GR) based on the specific IGP protocol running on the backbone network.
Configure IS-IS GR on the backbone network.
If IS-IS is running on the public network, do as follows on the related PEs and Ps on the
backbone network:
1. Run:
system-view
The system view is displayed.
2. Run:
isis process-id
The IS-IS view is displayed.
3. Run:
graceful-restart
The IS-IS GR capability is enabled.
By default, the IS-IS GR capability is disabled.
4. (Optional) Run:
graceful-restart interval interval-value
The interval for reestablishing the IS-IS GR session is configured.
The interval for reestablishing the IS-IS GR session is set to the Hold time in the IS-
IS Hello PDU. In this manner, the neighbor does not terminate the adjacency
relationship with the switch when the switch performs the AMB/SMB switchover.
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