Enabling or disabling dynamic capabilities


[no] neighbor ipv4-addr dynamic

Specifies whether to enable or disable dynamic capabilities.

BGP Dynamic Capabilities allow the communication of a change in a BGP peer’s capabilities without having to restart the peering session. The BGP implementation is done on a per-peer basis and in such a way that dynamic capabilities are supported as long as the BGP peer supports BGP Dynamic Capabilities. BGP advertises Dynamic Capabilities in the OPEN message. If a BGP peer advertises support for BGP Dynamic Capabilities in the OPEN message, then it turns on Dynamic Capabilities. Otherwise, the dynamic capabilities for this peer will be disabled. BGP supports the following BGP Dynamic Capabilities:

  • Graceful restart

  • Route refresh