Patent ID: 7961598
Filing Date: 2011-06-14
Classification: F03B,H04L

Abstract:
1. A method for rapidly responding to the failure of a link between two routing domains in a packet-oriented network, comprising: detecting the failure of the link by one of the routing domains; and providing at least one substitute route to a destination point for at least one route to the destination point, which passes via the failed link, wherein a message about the link failure is propagated only along the at least one substitute route, by means of which routing domains lying along the substitute route are notified, and wherein routing domains which have been notified and which lie along the at least one substitute route adjust their inter-domain routing to give a routing to the destination point along the at least one substitute route, until all the routing domains on the at least one substitute route have adjusted their inter-domain routing to give a routing to the destination point along the at least one substitute route.