Verifying Graceful Restart Operation

To verify proper operation of graceful restart, use the following commands:

• show bgp neighbor (for BGP graceful restart)

• show log (for IS-IS and OSPF/OSPFv3 graceful restart)

• show (ospf | ospfv3) overview (for OSPF/OSPFv3 graceful restart)

• show rsvp neighbor detail (for RSVP graceful restart—helper router)

• show rsvp version (for RSVP graceful restart—restarting router)

• show ldp session detail (for LDP graceful restart)

• show connections (for CCC and TCC graceful restart)

• show route instance detail (for Layer 3 VPN graceful restart and for any protocols using graceful restart in a routing instance)

• show route protocol l2vpn (for Layer 2 VPN graceful restart)

For more information about these commands and a description of their output fields, see the CLI Explorer.

To view graceful restart information for BGP sessions, use the show bgp neighbor command:

To view graceful restart information for IS-IS and OSPF, configure traceoptions (see Tracking Graceful Restart Events).

Here is the output of a traceoptions log from an OSPF restarting router:

Here is the output of a traceoptions log from an OSPF helper router:

To view graceful restart information for CCC and TCC connections, use the show connections command. The following example assumes four remote interface CCC connections between CE1 and CE2: