Software-defined network support for transport resilience

Submitted by richard on Tue, 02/18/2014 - 22:06
Joao Taveira Araujo, Raul Landa, Richard G. Clegg and George Pavlou
IEEE/IFIP Network Operations and Management Symposium
Existing methods for traffic resilience at the network
and transport layers typically work in isolation, often resorting
to inference in fault detection and recovery respectively. This
both duplicates functionality across layers, eroding efficiency, and
leads to protracted recovery cycles, affecting responsiveness. Such
misalignment is particularly at odds with the unprecedented
concentration of traffic in data-centers, in which network and
hosts are managed in unison.
This paper advocates instead a cross-layer approach to traffic
resilience. The proposed architecture, INFLEX, builds on the
abstractions provided by software-defined networking (SDN) to
maintain multiple virtual forwarding planes which the network
assigns to flows. In case of path failure, transport protocols proactively
request to switch plane in a manner which is unilaterally
deployable by an edge domain, providing scalable end-to-end
forwarding path resilience.

This paper is a development of the earlier ideas in PREFLEX --

In this case the focus is resilience within a data centre. In particular resilience at the network layer. If several paths are available to a destination the system known as INFLEX can support fail over between paths seamlessly using OpenFlow. In this case the system is tested using Openvswitch.

booktitle={IEEE/IFIP Network Operations and Management Symposium},
title={Software-defined network support for transport resilience},
author={Jo\~{a}o Ara\'{u} jo Taveira and Raul Landa and Richard G. Clegg and George Pavlou}
Paper type