Impairment aware path computation element method and system
US8891382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2012 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The disclosure includes an apparatus comprising: a path computation element (PCE) comprising a processor configured to: receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path; after receiving the path computation request, compute a network path; and perform an impairment validation of the network path specified by the impairment validation request. In another embodiment, the disclosure includes a method comprising: sending, by a PCC a PCEP path computation request to a PCE, wherein the request directs the PCE to perform routing and wavelength assignment (RWA) and a first impairment validation of a network path, wherein the request comprises a type of signal quality of the network path which indicates the first type of impairment validation to be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.