Comments on 'availability formulations for segment protection'

Péter Babarczi, János Tapolcai, Massimo Tornatore

Research output: Contribution to journalReview article


In this comment, we present some remarks on the availability evaluation of overlap dedicated segment protection (o-DSP) method in Tornatore et al., 2010, Availability Formulations for Segment Protection" [1]. We show how to correctly apply the pivotal decomposition availability-evaluation method in directed graphs (which was claimed to inapplicable in [1]), such that it gives the same (exact) connection availability value as the generating function method proposed in the original paper.

Original languageEnglish
Article number6502165
Number of pages1
JournalIEEE Transactions on Communications
Issue number6
Publication statusPublished - Apr 15 2013



  • Availability evaluation
  • Conditional decomposition
  • Factoring
  • Index Terms-Dedicated segment protection
  • Pivotal decomposition

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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