Tunnel Vector: A New Routing Algorithm with Scalability

—Routing algorithms such as Distance Vector and Link States have the routing table size as ΩΩΩΩ (n), where n is the number of destination identifiers, thus providing only limited scalability for large networks when n is high. As the distributed hash table (DHT) techniques are extraordinarily scalable with n, our work aims at adapting a DHT approach to the design of a networklayer routing algorithm so that the average routing table size can be significantly reduced to ΟΟΟΟ (log n) without losing much routing efficiency. Nonetheless, this scheme requires a major breakthrough to address some fundamental challenges. Specifically, unlike a DHT, a network-layer routing algorithm must (1) exchange its control messages without an underlying network, (2) handle link insertion/deletion and link-cost updates, and (3) provide routing efficiency. Thus, we are motivated to propose a new network-layer routing algorithm, Tunnel Vector (TV), using DHT-like multilevel routing without an un...

• Type: Conference
• Year: 2006
• Where: INFOCOM
• Authors: Cheng-Jia Lai, Richard R. Muntz
• Keywords: Communications, INFOCOM 2006, Routing, Routing Algorithm, Routing Table Size