Optimization of photonic services with colorless and directionless architecture
US9628172B2 · kind B2 · utility
8Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0295
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method, in a node operating in a network with a control plane, to optimize wavelength retuning on service redials, includes detecting a failure on a link associated with the node; and, for each affected connections on the link, sending a respective release message to an associated originating node via the control plane, the release message including a protect path and a wavelength, wherein the release message is utilized by the associated originating node to redial the affected connections with the protect path and the wavelength determined by the node, to minimize wavelength retuning on the affected connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.