A Routing Algorithm with Candidate Shortest Path

An improved algorithm based on the next node routing principle is proposed in this paper. In this algorithm there is a column added to the classical routing table, in which the candidate shortest distance to the destination node is the entry. When a link fails, the new shortest path in the nodes connected directly with the failure link can be found immediately (it is just the candidate shortest path before failure). For all other nodes in which routing tables should be changed, the required number of contro...