Graph Optimization Approaches for Minimal Rerouting in Symmetric Three Stage Clos Networks
2007 (English)Report (Other academic)
Considering routing in symmetrical three stage Clos networks, we search for the routing of an additional connection that requires the least rearrangements, i.e.\ the minimal number of changes of already routed connections. We describe polynomial methods, based on matchings and edge colorings. The basic idea is to swap colors along alternating paths. The paths need to be maximal, and the shortest of these maximal paths is chosen, since it minimizes the rerouting that needs to be done. Computational tests confirm the efficiency of the approach.
Place, publisher, year, edition, pages
Linköping: Linköpings universitet , 2007.
LiTH-MAT-R, ISSN 0348-2960 ; 2007:12
IdentifiersURN: urn:nbn:se:liu:diva-41369ISRN: LiTH-MAT-R-2007-12--SELocal ID: 55733OAI: oai:DiVA.org:liu-41369DiVA: diva2:262221