Fast failover and switchover for link failures and congestion in software defined networks

Ying-Dar Lin, Hung Yi Teng, Chia Rong Hsu, Chun Chieh Liao, Yuan Cheng Lai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

35 Scopus citations

Abstract

In this paper, we present a fast failover mechanism and a fast switchover mechanism to deal with link failure and congestion problems. In the fast failover mechanism, the controller pre-establishes multiple paths for each source-destination pair in the related OpenFlow-enabled (OF) switches. When a link becomes faulty, OF switches are able to failover the affected flows to another path. Based on the pre-established paths, in the fast switchover mechanism, the controller periodically monitors the status of each port of each OF switch. When the average transmission rate of a port consistently exceeds the rate threshold, the controller would decrease the transmission rate of the port by iteratively switching the flow with the minimum rate to another path. The emulation on Ryu controller and Mininet emulator shows the average recovery time of the fast failover mechanism is less than 40 ms, compared to hundreds of ms in the fast restoration mechanism. And, the fast switchover mechanism can reduce 47.5%-72.5% sustained time of link congestion depending on the parameter setting.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Communications, ICC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479966646
DOIs
StatePublished - 12 Jul 2016
Event2016 IEEE International Conference on Communications, ICC 2016 - Kuala Lumpur, Malaysia
Duration: 22 May 201627 May 2016

Publication series

Name2016 IEEE International Conference on Communications, ICC 2016

Conference

Conference2016 IEEE International Conference on Communications, ICC 2016
CountryMalaysia
CityKuala Lumpur
Period22/05/1627/05/16

Keywords

  • link congestion
  • link failure
  • multiple paths
  • network resilience
  • software defined networking

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