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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 6, Iss. 5 — May. 1, 2007
  • pp: 535–549

Protection of long-reach PON traffic through router database synchronization

David K. Hunter, Zheng Lu, and Tim H. Gilfedder  »View Author Affiliations

Journal of Optical Networking, Vol. 6, Issue 5, pp. 535-549 (2007)

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Feature Issue on Passive Optical Network Architectures and Technologies

A resilience strategy is introduced for networks implementing dual homing (dual parenting) of customers, specifically those employing long-reach PONs (LR-PONs). Assuming that some mechanism exists to detect network element failures, the discussion concentrates on protocols that propagate information about customer reachability and how this information reroutes traffic in the event of a fault. Each router holds a database indicating which other routers, and which LR-PONs, are available within the network, and these are synchronized between routers using IP. This information is used to reroute traffic in the event of failure. Simulation and analysis show that signaling time lies well within 50ms, leaving sufficient time for redirection of user traffic.

© 2007 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:
Passive Optical Network Architectures and Technologies

Original Manuscript: December 18, 2006
Revised Manuscript: April 1, 2007
Manuscript Accepted: April 2, 2007
Published: April 27, 2007

Virtual Issues
Passive Optical Network Architectures and Technologies (2007) Journal of Optical Networking

David K. Hunter, Zheng Lu, and Tim H. Gilfedder, "Protection of long-reach PON traffic through router database synchronization," J. Opt. Netw. 6, 535-549 (2007)

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