On the Resiliency of Static Forwarding Tables

Chiesa, Marco,1987-Université catholique du Louvain, Belgium,Catholic University of Louvain, Belgium (author)

QC 20180207
Funding Agencies|European Union [644960]; Swiss National Science Foundation [P1ELP2 161820]
Fast reroute and other forms of immediate failover have long been used to recover from certain classes of failures without invoking the network control plane. While the set of such techniques is growing, the level of resiliency to failures that this approach can provide is not adequately understood. In this paper, we embarked upon a systematic algorithmic study of the resiliency of forwarding tables in a variety of models (i.e., deterministic/probabilistic routing, with packet-headerrewriting, with packet-duplication). Our results show that the resiliency of a routing scheme depends on the "connectivity" k of a network, i.e., the minimum number of link deletions that partition a network. We complement our theoretical result with extensive simulations. We show that resiliency to four simultaneous link failures, with limited path stretch, can be achieved without any packet modification/duplication or randomization. Furthermore, our routing schemes provide resiliency against k - 1 failures, with limited path stretch, by storing log(k) bits in the packet header, with limited packet duplication, or with randomized forwarding technique.

Nikolaevskiy, I.Aalto University, Finland (author)
Mitrovic, S.Ecole Polytech Federal Lausanne, Switzerland (author)
Gurtov, AndreiLinköpings universitet,Databas och informationsteknik,Tekniska fakulteten,ITMO University, Russia(Swepub:liu)andgu38 (author)
Madry, A.MIT, MA 02139 USA (author)
Schapira, M.Hebrew University of Jerusalem, Israel (author)
Shenker, S.University of Calif Berkeley, CA 94720 USA; Int Comp Science Institute, CA 94704 USA (author)
Université catholique du Louvain, BelgiumCatholic University of Louvain, Belgium (creator_code:org_t)

In:IEEE/ACM Transactions on Networking: Institute of Electrical and Electronics Engineers (IEEE)25:2, s. 1133-11461063-66921558-2566

By the author/editor: Chiesa, Marco, 1 ...; Nikolaevskiy, I.; Mitrovic, S.; Gurtov, Andrei; Madry, A.; Schapira, M.; show more...; Shenker, S.; show less...

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