Journal of Network and Systems Management

, Volume 3, Issue 3, pp 243–264 | Cite as

Implementation of self-healing function in ATM networks

  • Ryutaro Kawamura
  • Hisaya Hadama
  • Ikuo Tokizawa
Papers

Abstract

This paper proposes an implementation scheme for the self-healing function in ATM (Asynchronous Transfer Mode) networks and assesses its performance in a developed experimental system. First, our proposed ATM self-healing scheme is described. This scheme realizes more rapid restoration of failed Virtual Paths than other self-healing algorithms, supports the node failure case, and minimizes the spare resources required. Next, an implementation scheme is proposed. We propose that the self-healing function can be implemented as a software process, and that OAM (Operation, Administration, and Maintenance) cells be utilized for fast message transmission. Next, results of a prototype system that we implemented on an ATM cross-connect system are discussed. The fundamental characteristics of restoration performance are measured using the experimental system. Based on these results, restoration characteristics of real world scale networks are estimated by computer simulations. The simulation results indicate that any-one link failure is completely restored within 2 seconds.

Key Words

Self-healing ATM Virtual Path Restoration Failure 

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • Ryutaro Kawamura
    • 1
  • Hisaya Hadama
    • 1
  • Ikuo Tokizawa
    • 1
  1. 1.NTT Optical Network Systems LaboratoriesYokosuka-shiJapan

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