University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Adaptive post-failure load balancing in fast reroute enabled IP networks

Wang, N, Fagear, A and Pavlou, G (2011) Adaptive post-failure load balancing in fast reroute enabled IP networks In: 12th IFIP/IEEE International Symposium on Integrated Network Management, IM 2011, 2011-05-23 - 2011-05-27.

[img]
Preview
Text
77982-mini-wang.pdf - ["content_typename_Accepted version (post-print)" not defined]
Available under License : See the attached licence file.

Download (447kB) | Preview
[img]
Preview
Text (licence)
SRI_deposit_agreement.pdf
Available under License : See the attached licence file.

Download (33kB) | Preview

Abstract

Fast reroute (FRR) techniques have been designed and standardised in recent years for supporting sub-50-millisecond failure recovery in operational ISP networks. On the other hand, if the provisioning of FRR protection paths does not take into account traffic engineering (TE) requirements, customer traffic may still get disrupted due to post-failure traffic congestion. Such a situation could be more severe in operational networks with highly dynamic traffic patterns. In this paper we propose a distributed technique that enables adaptive control of FRR protection paths against dynamic traffic conditions, resulting in self-optimisation in addition to the self-healing capability. Our approach is based on the Loop-free Alternates (LFA) mechanism that allows non-deterministic provisioning of protection paths. The idea is for repairing routers to periodically re-compute LFA alternative next-hops using a lightweight algorithm for achieving and maintaining optimised post-failure traffic distribution in dynamic network environments. Our experiments based on a real operational network topology and traffic traces across 24 hours have shown that such an approach is able to significantly enhance relevant network performance compared to both TE-agnostic and static TE-aware FRR solutions. © 2011 IEEE.

Item Type: Conference or Workshop Item (Conference Paper)
Authors :
NameEmailORCID
Wang, NUNSPECIFIEDUNSPECIFIED
Fagear, AUNSPECIFIEDUNSPECIFIED
Pavlou, GUNSPECIFIEDUNSPECIFIED
Date : 2011
Identification Number : 10.1109/INM.2011.5990548
Copyright Disclaimer : © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Depositing User : Symplectic Elements
Date Deposited : 14 Mar 2017 12:31
Last Modified : 31 Oct 2017 17:13
URI: http://epubs.surrey.ac.uk/id/eprint/806806

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800