13.5.9 Graceful restart configuration

<Structure of this section>

(1) List of configuration commands

The following table lists the commands used to configure graceful restart.

Table 13-23: List of configuration commands
Command name	Description
bgp graceful-restart mode	Specify to use graceful restart. ^#1
bgp graceful-restart restart-time	Specifies the maximum time that a peer will wait to be reconnected after a neighboring router has commenced a graceful restart. ^#1
bgp graceful-restart stalepath-time	Specifies the maximum time that a peer will keep routes received before a graceful restart after the neighboring router has commenced a graceful restart. ^#1
routing options graceful-restart time-limit^#2	Specifies the maximum amount of time that the Switch holds routes.

Note #1: Commonly specified for both VRFs and the global network. The config-router mode setting is also applied to VRF.
Note #2: See Configuration Command Reference Vol.2" "9 Routing Options (IPv4).

Points to note

To use the graceful restart router functionality, set restart or both parameters of bgp graceful-restart mode commandin config-router. If you need to configure bgp graceful-restart restart-time and bgp graceful-restart stalepath-time commands, configure them after you configure bgp graceful-restart mode command.
To use the graceful restart receive router function, set receive or both parameters of bgp graceful-restart mode commandin config-router. If you need to configure bgp graceful-restart restart-time and bgp graceful-restart stalepath-time commands, configure them after you configure bgp graceful-restart mode command.

Command examples

(config)# router bgp 65531

(config-router)# bgp router-id 192.168.1.100

(config-router)# neighbor 172.16.2.2 remote-as 65532

(config-router)# neighbor 192.168.2.2 remote-as 65531

Configure the BGP4 peers.
(config-router)# bgp graceful-restart mode both

Specifies that the graceful restart router and receive router functionality are to be used.