User guide

Configuring BGP Configuring Redistribution
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide March 2015 page 4-53
Configuring Redundant CMMs for Graceful Restart
On an OmniSwitch router in a redundant CMM configuration, inter-domain routing is not disrupted during
a CMM takeover/failover. BGP retains routing information using Graceful Restart mechanisms and also
helps a peering BGP router perform a BGP graceful restart. This supports the continuous forwarding of
inter-domain traffic flows.
To configure BGP graceful restart support on OmniSwitch switches, use the ip bgp graceful-restart
command by entering ip bgp graceful-restart.
For example, to support BGP graceful restart, enter:
-> ip bgp graceful-restart
To configure the grace period to achieve a graceful BGP restart, use the ip bgp graceful-restart restart-
interval command, followed by the value in seconds.
For example, to configure a BGP graceful restart grace period as 300 seconds, enter:
-> ip bgp graceful-restart restart-interval 60
To disable support for graceful restart, use the no form of the ip bgp graceful-restart command by
entering:
-> no ip bgp graceful-restart
For more information about graceful restart commands, see the “BGP Commands” chapter in the
OmniSwitch AOS Release 7 CLI Reference Guide.