Title :
A Fast Re-Route Method
Author :
Rosenberg, E. ; Uttaro, J.
Author_Institution :
AT&T Labs., Middletown, NJ, USA
Abstract :
We present a method to find an alternate path, after a link failure, from a source node to a destination node, before the Interior Gateway Protocol (e.g., OSPF or IS-IS) has had a chance to reconverge in response to the failure. The target application is a small (up to tens of nodes) regional access subnetwork of a service provider´s network, which is a typical access scale encountered in practice. We illustrate the method and prove that it will find a path if one exists.
Keywords :
routing protocols; destination node; fast reroute method; interior gateway protocol; link failure; regional access subnetwork; service provider network; source node; Convergence; IP networks; Logic gates; Protocols; Routing; Throughput; Topology; Routing protocols; alternate routing; network survivability;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.070113.130921
