Implementation of virtual path hopping (VPH) as a solution for control plane failures in connection oriented networks and an analysis of traffic distribution of VPH

  • Authors:
  • Manodha Gamage;Mitsuo Hayasaka;Tetsuya Miki

  • Affiliations:
  • The Department of Electronics, Faculty of Engineering, The National University of Electro-Communications, Tokyo, Japan;The Department of Electronics, Faculty of Engineering, The National University of Electro-Communications, Tokyo, Japan;The Department of Electronics, Faculty of Engineering, The National University of Electro-Communications, Tokyo, Japan

  • Venue:
  • QoS-IP'05 Proceedings of the Third international conference on Quality of Service in Multiservice IP Networks
  • Year:
  • 2005

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Abstract

A connection oriented next generation Internet could guarantee the QoS preferred by the emerging real time applications. These connection oriented networks are inherently more prone to network failures: link/path failures and degraded failures. The control and the data plane of connection oriented networks such as MPLS are logically separated. Therefore a failure in the control plane should not always immediately affect the communications in the data plane. Control plane failures are usually detected using Timers. If any of the Timers expire, the control plane session is terminated resulting failures in the corresponding data plane. This paper discusses in detail the implementation of VPH concept that intent to eliminate the degraded type failures in the data plane and its advantages. Also this evaluates a more efficient, non-periodic VPH concept. The results of the computer simulations show VPH is a proactive technique to eliminate degraded type failures and improve the availability of the networks.