Method and system for switching serving services of the virtual private LAN service
US7782764B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Feb 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for switching the serving services of virtual private LAN is provided. When a fault occurs on a normal service transmission path, a PE device on the secondary path transmits a message including an information of the failure device on the normal service transmission path to the other PE devices on the path to indicate the path switching; the other PE devices replace the faulty PE device corresponding to the transmission path item in VPLS transmission table as the PE device on the secondary path according to the received message for indicating the path switching. Using the present invention, when an access device detects a fault, the VPLS service can switch to the secondary path immediately without affecting other services; because the VPLS messages do not need to be broadcasted during path switching, the network bandwidth will not be wasted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.