Configuring BGP GR

Context

BGP restart causes peer relationship reestablishment and traffic interruption. Graceful restart (GR) ensures uninterrupted traffic forwarding in the case of BGP restart.

Procedure

Run system-view
The system view is displayed.
Run bgp { as-number-plain | as-number-dot }
The BGP view is displayed.
Run graceful-restart
BGP GR is enabled.

By default, BGP GR is disabled.
(Optional) Run graceful-restart timer wait-for-rib timer
The time during which the restarting speaker and receiving speaker wait for End-of-RIB messages is set.

By default, the time for waiting for End-of-RIB messages is 600 seconds.
(Optional) Run graceful-restart peer-reset
The device is enabled to reset a BGP session in GR mode.

By default, a device is disabled from resetting a BGP connection in GR mode.

Verifying the Configuration

Run the display bgp peer verbose command to check detailed information about BGP GR.