06850705 is referenced by 11 patents and cites 27 patents.

A method and apparatus for selecting failure protection paths in a WDM network. The method exploits wavelength reservation sharing potentials presented by non-concurrent failure events on a plurality of links sharing a link in a protection path. Light-weight aggregated link metrics termed “buckets” are used to track wavelength reservations for protection paths on individual links in the network. These buckets are then used to construct protection paths with minimized wavelength consumption. The method is employed on individual networking devices in a distributed manner or is used by a centralized network management system to allocate protection paths.

Title
Online distributed path routing method and system
Application Number
9/810892
Publication Number
6850705 (B2)
Application Date
March 17, 2001
Publication Date
February 1, 2005
Inventor
Takafumi Chujo
Cupertino
CA, US
Ching Fong Su
Milpitas
CA, US
Agent
Christie Parker & Hale
Assignee
Fujitsu
JP
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