A Distributed Routing Algorithm Based on Architecture of ForCES

This paper presents a distributed routing algorithm based on architecture of Forwarding and Control Element Separation(ForCES). On this algorithm the calculating routing table divides into two parts, inner routing table between Forwarding Elements and outer routing table between routers. Then according to both routing tables the Control Element calculates the final routing table of each Forwarding Element. An independent routing server is used for the routing process, which decreases the amount of development work. This algorithm satisfies the distributed characteristic of ForCES router and reduces the amount of computation of Forwarding Element obviously. The algorithm has been applied at a prototype of ForCES router with satisfactory result.