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On the Resiliency of Static Forwarding Tables
Université catholique du Louvain, Belgium.ORCID iD: 0000-0002-9675-9729
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2017 (English)In: IEEE/ACM Transactions on Networking, ISSN 1063-6692, E-ISSN 1558-2566, Vol. 25, no 2, p. 1133-1146, article id 7728092Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017. Vol. 25, no 2, p. 1133-1146, article id 7728092
Keywords [en]
Computers and information processing, computer networks, computer network management, disruption tolerant networking, reliability, robustness
National Category
Communication Systems Computer Sciences
Identifiers
URN: urn:nbn:se:kth:diva-222321DOI: 10.1109/TNET.2016.2619398ISI: 000399766100035Scopus ID: 2-s2.0-84994252229OAI: oai:DiVA.org:kth-222321DiVA, id: diva2:1180773
Note

QC 20180207

Available from: 2018-02-06 Created: 2018-02-06 Last updated: 2018-02-07Bibliographically approved

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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
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  • de-DE
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  • en-US
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  • nn-NB
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  • Other locale
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Output format
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