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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Keren Bergman
  • Vol. 7, Iss. 5 — May. 1, 2008
  • pp: 496–512

Experimental evaluation of GMPLS enhanced routing for differentiated survivability in all-optical networks

Ricardo Martínez, Ramon Casellas, and Raül Muñoz  »View Author Affiliations

Journal of Optical Networking, Vol. 7, Issue 5, pp. 496-512 (2008)

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Future intelligent optical networks (IONs) are devised to support a wide variety of clients, each having their own reliability requirements, such as availability. These networks thus need to support differentiated recovery schemes fulfilling those requirements while achieving efficient network performance (e.g., resource usage). We specifically focus on dedicated path protection (DPP) and shared path protection (SPP) recovery within generalized multiprotocol label switching (GMPLS) all-optical networks. In this context, the standard GMPLS open shortest path first-traffic engineering (OSPF-TE) protocol does not convey the required routing information in order to achieve a desirable network performance. The novelty of this work is twofold. First, to present enhanced GMPLS routing approaches for both SPP and DPP recovery schemes that, besides maximizing resource usage, also address connection blocking mostly due to the wavelength continuity constraint. Second, to evaluate these implemented schemes in a real experimental ION named ADRENALINE testbed. A detailed description of the routing approaches along with their required extensions to current GMPLS OSPF-TE is provided. The experimental performance comparison is conducted considering three figures of merit: connection blocking probability, restoration overbuild, and connection setup delay. The evaluation of the aforementioned schemes may help network operators to select a survivability scheme for a given client.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Reliability Issues in Optical Networks

Original Manuscript: November 2, 2007
Revised Manuscript: March 14, 2008
Manuscript Accepted: March 27, 2008
Published: April 30, 2008

Virtual Issues
Reliability Issues in Optical Networks (2008) Journal of Optical Networking

Ricardo Martínez, Ramon Casellas, and Raül Muñoz, "Experimental evaluation of GMPLS enhanced routing for differentiated survivability in all-optical networks," J. Opt. Netw. 7, 496-512 (2008)

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