Method of and control node for detecting failure
US7564778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2004 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Apr 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of detecting a failure in a network, which includes a transport plane comprised of a plurality of communication nodes performing optical cross-connect and a control plane comprised of a plurality of control nodes that are connected to and control the respective communication nodes, includes the steps of transmitting, from a control node connected to a communication node having detected a failure to an adjacent control node, a failure information message having a time indication indicative of a time at which the failure is detected, and identifying, at a given control node which received the failure information message, a location of the failure in response to the time indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.