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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 5, Iss. 10 — Oct. 1, 2006
  • pp: 747–763

Cost evaluations of the protected network layer packet redundancy scheme

H. Øverby  »View Author Affiliations


Journal of Optical Networking, Vol. 5, Issue 10, pp. 747-763 (2006)
http://dx.doi.org/10.1364/JON.5.000747


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Abstract

Feature Issue on High Availability in Optical Networks

The protected network layer packet redundancy scheme (P-NLPRS), which is a novel approach to providing 1+1 path protection functionality in optical packet switching (OPS) networks, is presented. Traditional 1+1 path protection protects data by transmitting two identical copies of each packet over two node- and link-disjoint paths between an ingress and egress node in a network. With the P-NLPRS, a packet set consisting of k−1 data packets and 1 redundancy packet is transmitted over k node- and link-disjoint paths between an ingress and egress node in the OPS network. The P-NLPRS is especially attractive for OPS, since, in addition to providing 1+1 path protection functionality, it may be utilized to combat packet loss due to contentions. An analytical framework suitable for evaluating the cost of providing 1+1 path protection is presented, along with an analytical model of the P-NLPRS. A quantitative cost study shows that the P-NLPRS can provide 1+1 path protection functionality with 33% to 91% of the cost required by traditional 1+1 path protection, depending on the cost model and the network topology.

© 2006 Optical Society of America

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

ToC Category:
High Availability in Optical Networks

History
Original Manuscript: January 9, 2006
Revised Manuscript: July 26, 2006
Manuscript Accepted: July 29, 2006
Published: September 26, 2006

Virtual Issues
High Availability in Optical Networks (2006) Journal of Optical Networking

Citation
H. Øverby, "Cost evaluations of the protected network layer packet redundancy scheme," J. Opt. Netw. 5, 747-763 (2006)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-5-10-747

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