show bgp ipv6 unicast summary
When the router configuration is modified so that changes can be made to the IPv6 configuration, then the router does not return a result for this command. As a result, any information pertaining to IPv6 configuration change cannot be obtained.
If the configuration change affects the status of the connection and the CLI response can be retrieved, then the status of the Cisco IPv6 BGP configuration can updated.
If the configuration change does not return any response to the CLI command, then the BGP session will be shown as disconnected (with either BGPSesssion::Down or BGPService::Down as appropriate) and no further processing of notifications take place.