Dynamic expansion of M:N protection groups in GMPLS optical networks

D. W. Griffith, Sukyoung Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


In order to provide reliable connections across metropolitan and wide-area optical networks, the network operator must provide some degree of redundancy so that traffic can be switched from damaged working paths to backup paths that are disjoint from the working paths that they are protecting. In the most general form of path protection, N working paths between two client edge nodes are protected by M backup paths. The set of working and protection paths forms a M:N protection group. In the near future, optical transport networks (OTNs) will use an automated control plane to set up, tear down, or modify connections between client edge nodes. If protection groups are allowed to evolve over time, with working and backup paths being set up or torn down individually, it may be necessary to modify other working and backup paths in addition to those that are being created or destroyed, in order to maximize network utilization. In this paper, we examine the mechanisms that can support adaptive M:N protection group management and describe how existing Generalized Multi-Protocol Label Switching (GMPLS) signaling protocols allow this capability to be deployed in the OTN.

Original languageEnglish
Title of host publicationProceedings - International Conference on Parallel Processing Workshops, ICPPW 2002
EditorsStephan Olariu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)0769516807
Publication statusPublished - 2002
EventInternational Conference on Parallel Processing Workshops, ICPPW 2002 - Vancouver, Canada
Duration: 2002 Aug 182002 Aug 21

Publication series

NameProceedings of the International Conference on Parallel Processing Workshops
ISSN (Print)1530-2016


OtherInternational Conference on Parallel Processing Workshops, ICPPW 2002

Bibliographical note

Publisher Copyright:
© 2002 IEEE.

All Science Journal Classification (ASJC) codes

  • Software
  • General Mathematics
  • Hardware and Architecture


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