Method and apparatus for fault detection/isolation in metro Ethernet service
US7644317B1 · kind B1 · utility
23Cited by
37References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Dec 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and method of detecting a fault in a network service includes an Ethernet access network domain in which a heartbeat message is broadcast at a periodic interval by each of a plurality of edge devices associated with an instance of the network service. Each of the edge devices also receives the heartbeat messages broadcast at the periodic interval from other edge devices. A fault occurrence is identified when the edge device fails to receive an expected heartbeat message at the periodic interval from one of the other edge devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.