Design and Analysis of Improved Shortest Path Tree Update for Network Routing

Bin Xiao, Qingfeng Zhuge, Zili Shao, Edwin H.M. Sha

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The quick constmction of the Shortest Path Tree (SPT) is essential to achieve fast routing speed for an interior network using link state protocols, such as OSPF and IS-IS. Whenever the network topology changes, the old SPT must be updated. In a network with a large number of nodes, the technology with the whole SPT re-computation by traditional static algorithms is very inefficient. It will take tremendous computation time and make routing table instability by unnecessary changes in an existing SPT. In this paper, we propose an improved algorithm for the dynamic SPT update to solve the above problems. The proposed algorithm is based on the understanding of the dynamic update process to reduce redundancy Only significant edges that contribute to the construction of the new SPT will be considered. The analysis of the algorithm complexity and experimental results shows that our algorithm is much better than any others in the literature.

Original languageEnglish
Title of host publication16th ISCA International Conference on Parallel and Distributed Computing Systems 2003, PDCS 2003
EditorsSeong-Moo Yoo, Hee Yong Youn
PublisherInternational Society for Computers and Their Applications (ISCA)
Pages82-87
Number of pages6
ISBN (Electronic)9781618398161
StatePublished - 2003
Externally publishedYes
Event16th International Conference on Parallel and Distributed Computing Systems, PDCS 2003 - Reno, United States
Duration: 13 Aug 200315 Aug 2003

Publication series

Name16th ISCA International Conference on Parallel and Distributed Computing Systems 2003, PDCS 2003

Conference

Conference16th International Conference on Parallel and Distributed Computing Systems, PDCS 2003
Country/TerritoryUnited States
CityReno
Period13/08/0315/08/03

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