Distributed Routing for Very Large Networks Based on Link Vectors
CALIFORNIA UNIV SANTA CRUZ DEPT OF COMPUTER ENGINEERING
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Routing is the network-layer function that selects the paths that data packets travel from a source to a destination in a computer communication network. This thesis is on distributed adaptive routing algorithms for large packet-switched networks. A new type of routing algorithms for computer networks, the link-vector algorithm LVA is introduced. LVAs use selective dissemination of topology information. Each router running an maintains a subset of the topology that corresponds to adjacent links and those links used by its neighbor routers in their preferred paths to known destinations. Based on that subset of topology information, the router derives its own preferred paths and communicates the corresponding link-state information to its neighbors. An update message contains a vector of updates each such update specifies a link and its parameters. LVAs can be used for different types of routing policies. LVAs are shown to have better performance than the ideal link-state algorithm based on flooding and the distributed Bellman-Ford algorithm.
- Computer Systems