Optical communication network path restoration
US9054831B2 · kind B2 · utility
9Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2012 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0268
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system of determining a new path through an optical network from a source node to a destination node when a link in an original path fails are disclosed. When a fault on a link is detected, adjoint weights are assigned to each operational link for each node on the original path. A connection cost is determined for each node based on the adjoint weights of the links connected to the node. A new path through the optical network is determined based at least in part on the adjoint weights and the connection costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.