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Link Failure Detection and Traffic Redirection in an Openflow Network
KTH, School of Information and Communication Technology (ICT), Communication: Services and Infrastucture (Closed 20120101), Telecommunication Systems Laboratory, TSLab (closed 2012-01-01).
2010 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Failure detection and traffic redirection are implemented in an OpenFlow switch. Link failure detection packets, such as Bidirectional Forwarding Detection (BFD) packets, are periodically sent out on links to peer OpenFlow switches, such as via the Multi-protocol Label Switching (MPLS) Transport Profile (MPLS-TP). Link failure detection packets are received from the peer OpenFlow switches on the links, and monitored. A link failure is detected if no incoming link failure detection packets are received on a link for a predetermined interval. In the event of a link failure, traffic is redirected from the failed link to a backup link by altering entries on a flow table of the OpenFlow switch.

Place, publisher, year, edition, pages
2010.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-120038OAI: oai:DiVA.org:kth-120038DiVA: diva2:613241
Patent
US 8665699B2 (2014-03-04)
Note

QC 20150127

Available from: 2013-03-26 Created: 2013-03-26 Last updated: 2015-01-27Bibliographically approved

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