Patent ID: 7599312
Filing Date: 2009-10-06
Classification: H04L

Abstract:
1. A method performed by a node in a network for withdrawing routes, the method comprising: receiving, by the node, one or more route update messages identifying a plurality of routes with associated attributes or Type-Length-Values (TLVs) and updating a routing database in the node to include the plurality of routes associated with their said associated attributes or TLVs; receiving, by the node, a particular message associated with a route withdraw operation, the particular message including two specified values and a value defining an operator, with each of said two specified values being an attribute or a TLV; performing, by the node in response to said receiving the particular message, a query on the routing database to identify one or more particular routes of the plurality of routes in the routing database, with the operator defining for the query the matching requirements of said two specified values against attributes or TLVs associated with routes in the routing database; and withdrawing, by the node, said one or more particular routes from the routing database said identified by the query said performed on the routing database.