Disabling BGP4+ route delivery to the IP routing table on an RR can prevent traffic from being forwarded by the RR, improving route advertisement efficiency.
In most cases, BGP4+ routes are added to the IP routing table on the router for traffic forwarding. If the router does not need to forward traffic, prevent the router from adding BGP4+ routes to the IP routing table.
Preventing a device from adding BGP4+ routes to the IP routing table is mainly used in RR scenarios. In an AS, an RR transmits routes and forwards traffic. If an RR is connected to many clients and non-clients, route transmission will consume a lot of CPU resources of the RR and cause the RR to be unable to implement traffic forwarding. To improve route transmission efficiency, prevent the RR from adding BGP4+ routes to the IP routing table.
The system view is displayed.
The BGP view is displayed.
The IPv6 unicast address family view is displayed.
If the route-policy route-policy-name or route-filter route-filter-name parameter is specified in the routing-table rib-only command, the matched routes are not delivered to the IP routing table, and the unmatched routes are delivered to the IP routing table, with route attributes unchanged.
The configuration is committed.