Controlling Route Import

BGP4+ can import the routes discovered by other protocols into the BGP4+ routing table. When importing IGP routes, BGP can filter routes by routing protocol.

Usage Scenario

BGP4+ cannot discover routes by itself. Instead, it imports routes discovered by other protocols, such as OSPFv3 or static routes into the BGP4+ routing table. These imported routes are then transmitted within an AS or between ASs. When importing routes, BGP4+ can filter these routes by routing protocol.

Pre-configuration Tasks

Before controlling route import, configure basic BGP4+ functions.

Configuring BGP4+ to Import Routes: BGP4+ can import routes from other protocols. When routes are imported from dynamic routing protocols, the process IDs of the routing protocols must be specified.

Configuring BGP4+ to Import Default Routes: This section describes how to configure BGP4+ to import default routes from the local routing table.

Verifying the Configuration of Route Import: After controlling route import is configured, verify information about filtered and imported routes.