Fast Recovery in Software-Defined Networks

Title

Fast Recovery in Software-Defined Networks

 Author

Van Adrichem, N.L.M.
Van Asten, B.J.
Kuipers, F.A.

Faculty

Electrical Engineering, Mathematics and Computer Science

 Department

Intelligent Systems

 Date

2014-09-03

 Abstract

Although Software-Defined Networking and its implementation OpenFlow facilitate managing networks and enable dynamic network configuration, recovering from network failures in a timely manner remains non-trivial. The process of (a) detecting the failure, (b) communicating it to the controller and (c) recomputing the new shortest paths may result in an unacceptably long recovery time. In this paper, we demonstrate that current solutions, employing both reactive restoration or proactive protection, indeed suffer long delays. We introduce a failover scheme with per-link Bidirectional Forwarding Detection sessions and preconfigured primary and secondary paths com puted by an OpenFlow controller. Our implementation reduces the recovery time by an order of magnitude compared to related work, which is confirmed by experimental evaluation in a variety of topologies. Furthermore, the recovery time is shown to be constant irrespective of path length and network size.

 To reference this document use:

http://resolver.tudelft.nl/uuid:a51c0656-862e-49c0-b3c3-719ca1d4aee7

 Publisher

EWSDN

 Source

Third European Workshop on Software Defined Networking (EWSDN), Budapest, Hungary, 1- 3 september 2014

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) 2014 Van Adrichem, N.L.M.
Van Asten, B.J.
Kuipers, F.A.
Files
PDF EWSDN2014-2.pdf 384.2 KB
Close viewer