Method, apparatus and system for ring protection
US8031590B2 · kind B2 · utility
5Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2009 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Sep 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and system for Ethernet Ring Protection (ERP) are disclosed. The system includes: a node which detects a link fault blocks the port connected with the faulty link after the link on the ring is faulty, and sends a fault alarm message to adjacent nodes; and the adjacent nodes judge whether the state of the node changes from the normal state to the faulty state according to the received fault alarm message, and clear the forwarding table of the node if such is the case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.