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SCMon: Leveraging segment routing to improve network monitoring

Aubry, F; Lebrun, D; Vissicchio, S; Khong, MT; Deville, Y; Bonaventure, O; (2016) SCMon: Leveraging segment routing to improve network monitoring. In: Proceedings of IEEE INFOCOM 2016 - The 35th Annual IEEE International Conference on Computer Communications. IEEE: San Francisco, CA, USA. Green open access

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Abstract

To guarantee correct operation of their networks, operators have to promptly detect and diagnose data-plane issues, like broken interface cards or link failures. Networks are becoming more complex, with a growing number of Equal Cost MultiPath (ECMP) and link bundles. Hence, some data-plane problems (e.g. silent packet dropping at one router) can hardly be detected with control-plane protocols or simple monitoring tools like ping or traceroute. In this paper, we propose a new technique, called SCMon, that enables continuous monitoring of the data-plane, in order to track the health of all routers and links. SCMon leverages the recently proposed Segment Routing (SR) architecture to monitor the entire network with a single box (and no additional monitoring protocol). In particular, SCMon uses SR to (i) force monitoring probes to travel over cycles; and (ii) test parallel links and bundles at a per-link granularity. We present original algorithms to compute cycles that cover all network links with a limited number of SR segments. Further, we prototype and evaluate SCMon both with simulations and Linux-based emulations. Our experiments show that SCMon quickly detects and precisely pinpoints data-plane problems, with a limited overhead.

Type: Proceedings paper
Title: SCMon: Leveraging segment routing to improve network monitoring
Event: The 35th Annual IEEE International Conference on Computer Communications (IEEE INFOCOM 2016)
ISBN-13: 9781467399531
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/INFOCOM.2016.7524410
Publisher version: http://dx.doi.org/10.1109/INFOCOM.2016.7524410
Language: English
Additional information: Copyright © 2016 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.
Keywords: Monitoring, Routing, Probes, Routing protocols, Topology, Network topology
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: http://discovery.ucl.ac.uk/id/eprint/1520300
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