Internally Stored Route Reconfiguration

The soft reset of BGP routes can be based upon local internal storing of routes. For the soft reconfiguration approach, the received routes are stored in a dedicated table. When the inbound policy changes, the new policy is automatically applied. This approach is memory intensive, due to the storage of all the routes per peer or peer-group in a separate table.

Use the neighbor soft-reconfiguration command, in BGP router configuration mode, to enable the soft reconfiguration option on the local router. This command requires that you either specify the peer IP address or the peer group to be enabled for soft reconfiguration.

The following example turns on the route refresh capability for peer 10.10.25.1/24:

System(su-config)->router bgp 65151
System(su-config-bgp)->bgp router-id 159.1.1.9
System(su-config-bgp)->neighbor 10.10.25.1/24 remote-as 5
System(su-config-bgp)->neighbor 10.10.25.1/24 soft-reconfiguration