Protection scheme for a communications network under multiple failures
US7352703B2 · kind B2 · utility
8Cited by
10References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/083
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for implementing a shared protection scheme under a scenario of multiple failures in an optical network. In one embodiment of the invention, a working path between an ingress node and an egress node is computed responsive to a connection request received in the network. One or more backup paths are computed between the ingress and egress nodes, which are activatable upon a failure condition associated with the working path or the backup paths. The backup paths may be based on link and/or node disjointedness, as well as resource-based cost constraints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.