Patent ID: 10333790

Abstract:
A method for selective route download (SRD) in network devices. The method includes obtaining, by a network device, a first SRD route selection list. The method further includes identifying a first route to be installed in the FIB, based on the first SRD route selection list, including making a first determination that a route map, based on the SRD route selection list, includes route map changes that are exclusively attributed to the SRD route selection list. Identifying the first route further includes making a second determination that the route map changes are exclusively expressed using a prefix list, and based on the first and the second determinations, selecting the first route from a border gateway protocol (BGP) routing information base (RIB), by processing only routes in the BGP RIB that have prefixes matching changed prefixes in the prefix list. The method also includes updating the FIB with the first route.