Route-Refresh

Route refresh, defined in RFC 2918, is a capability that the peer advertises in the OPEN message during session establishment. If both the local router and its peer agree to support this capability, a router can send a route refresh message to its peer whenever the local router‘s inbound policy changes. The peer will respond by resending its update messages. The local router can then reapply its policy without tearing down the BGP connection and without locally storing the received routes.

If the route refresh capability is enabled, the route refresh message is generated automatically when the inbound policy changes. Route refresh is enabled by default. If the soft reconfiguration soft reset method is enabled (see Internally Stored Route Reconfiguration) route refreshes are not sent.

Use the bgp automatic-route-refresh command, in BGP router configuration mode, to enable route refresh on the local router.

The following example disables BGP automatic route refresh for BGP router 65151:

System(su-config)->router bgp 65151
System(su-config-bgp)->no bgp automatic-route-refresh
System(su-config-bgp)->