Title :
Detour planning for fast and reliable failure recovery in SDN with OpenState
Author :
Capone, Antonio ; Cascone, Carmelo ; Nguyen, Alessandro Q. T. ; Sanso, Brunilde
Author_Institution :
Dipt. di Elettron., Inf. e Bioingegneria, Politec. di Milano, Milan, Italy
Abstract :
A reliable and scalable mechanism to provide protection against a link or node failure has additional requirements in the context of SDN and OpenFlow. Not only it has to minimize the load on the controller, but it must be able to react even when the controller is unreachable. In this paper we present a protection scheme based on precomputed backup paths and inspired by MPLS “crankback” routing, that guarantees instantaneous recovery times and aims at zero packet-loss after failure detection, regardless of controller reachability, even when OpenFlow´s “fast-failover” feature cannot be used. The proposed mechanism is based on OpenState, an OpenFlow extension that allows a programmer to specify how forwarding rules should autonomously adapt in a stateful fashion, reducing the need to rely on remote controllers. We present the scheme as well as two different formulations for the computation of backup paths.
Keywords :
computer network management; computer network reliability; computer network security; multiprotocol label switching; software defined networking; telecommunication network planning; telecommunication network routing; MPLS crankback routing; OpenFlow; OpenState; SDN; controller reachability; detour planning; failure detection; failure management; instantaneous recovery times; link failure; node failure; precomputed backup paths; protection scheme; reliable failure recovery; software defined networking; zero packet-loss; Communication networks; Control systems; Linear programming; Network topology; Reliability engineering; Topology;
Conference_Titel :
Design of Reliable Communication Networks (DRCN), 2015 11th International Conference on the
Conference_Location :
Kansas City, MO
DOI :
10.1109/DRCN.2015.7148981
