How can multi-topology routing be used for intradomain traffic engineering?

Authors:
Amund Kvalbein;Olav Lysne
Affiliations:
Simula Research Laboratory, Oslo, Norway;Simula Research Laboratory, Oslo, Norway
Venue:
Proceedings of the 2007 SIGCOMM workshop on Internet network management
Year:
2007

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Abstract

Multi-Topology routing allows each router in a network to maintain several valid routes to each destination. This increases the possibilities to spread traffic towards a destination over multiple paths with connectionless routing protocols like OSPF or IS-IS. In this paper, we report early ideas on how this can be utilized as a Traffic Engineering tool. We look at both offline and online approaches, and argue that a Multi-Topology based solution has advantages over previous solutions in both paradigms.