Patent ID: 8089968
Filing Date: 2012-01-03
Classification: H04L

Abstract:
1. A method comprising: storing, by an inter-domain routing protocol, an inter-domain routing protocol route having an associated next-hop address; searching a routing table for an intra-domain routing protocol route used to reach the next-hop address of the inter-domain routing protocol route, wherein whether or not a route is used to reach the next-hop address of an inter-domain routing protocol route indicates whether or not the route should be marked as an important route for convergence; in response to locating an intra-domain routing protocol route being used to reach the next-hop address of the inter-domain routing protocol route, marking the intra-domain routing protocol route as an important route for convergence; and in response to a change in a network requiring a routing table update, processing the intra-domain routing protocol route marked as an important route for convergence, by an intra domain routing protocol, before processing any other intra-domain routing protocol routes that are not marked as important routes for convergence.