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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 2, Iss. 11 — Nov. 3, 2003
  • pp: 390–401

FASTeR: sub-50-ms shared restoration in mesh networks

Mansoor Alicherry, Harsha Nagesh, Chitra Phadke, and Vishy Poosala  »View Author Affiliations

Journal of Optical Networking, Vol. 2, Issue 11, pp. 390-401 (2003)

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Shared restoration is key to realizing the bandwidth savings offered by mesh networking. To be viable, restoration has to be effected very quickly—typically, within 50 ms after failure. However, all the known schemes involve signaling and cross-connect setups and require excessive duration times. We describe a novel restoration scheme called FASTeR that dramatically reduces restoration times by eliminating these operations. It involves a novel select-multicast feature of the cross connects and can be applied to all-optical or electrical networks. We extend the generalized multiprotocol label-switching (GMPLS) standard to support this scheme and present simulation results to evaluate the scheme and show that a small multicasting degree is sufficient in practice to achieve the bandwidth savings gained in traditional restoration schemes.

© 2003 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(230.0230) Optical devices : Optical devices

ToC Category:

Original Manuscript: May 16, 2003
Revised Manuscript: May 13, 2003
Published: October 27, 2003

Mansoor Alicherry, Harsha Nagesh, Chitra Phadke, and Vishy Poosala, "FASTeR: sub-50-ms shared restoration in mesh networks," J. Opt. Netw. 2, 390-401 (2003)

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