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On improving the efficiency and manageability of NotVia

Published: 10 December 2007 Publication History

Abstract

This paper presents techniques that improve the efficiency and manageability of an IP Fast Reroute (IPFRR) technology: NotVia. NotVia provides the IPFRR service for all destinations in an ISP's network upon any single link or node failure, while previous proposals such as Loop-free Alternates (LFA) can not guarantee this level of coverage. However, NotVia increases the computational and memory costs of the IPFRR service, and poses new challenges to network management, as routers are unaware of the links and nodes (hence the amount of traffic) that they actually protect. This paper introduces three techniques: NotVia aggregation, prioritized NotVia computation, and the rNotVia algorithm that collectively reduce the overhead of NotVia and improve its manageability. We use simulations to evaluate these techniques on real ISP topologies as well as on randomly generated topologies. The results show that the computational and memory overhead of NotVia are reduced to a fraction of their previous values on various topologies, suggesting that the techniques proposed in this paper make NotVia a more efficient and easy-to-manage IPFRR solution.

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cover image ACM Conferences
CoNEXT '07: Proceedings of the 2007 ACM CoNEXT conference
December 2007
448 pages
ISBN:9781595937704
DOI:10.1145/1364654
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 10 December 2007

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  • (2016)IP fast rerouting and disjoint multipath routing with three edge-independent spanning treesIEEE/ACM Transactions on Networking10.1109/TNET.2015.244017924:3(1336-1349)Online publication date: 1-Jun-2016
  • (2016)Tunneling on demand: A lightweight approach for IP fast rerouting against multi-link failures2016 IEEE/ACM 24th International Symposium on Quality of Service (IWQoS)10.1109/IWQoS.2016.7590416(1-6)Online publication date: Jun-2016
  • (2014)Reactive Load Balancing During Failure State in IP Fast Reroute SchemesJournal of Information Processing10.2197/ipsjjip.22.52722:3(527-535)Online publication date: 2014
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  • (2014)On the design of Resilient IP Overlays2014 10th International Conference on the Design of Reliable Communication Networks (DRCN)10.1109/DRCN.2014.6816147(1-8)Online publication date: Apr-2014
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