Edge node redundant system in label switching network
US8179900B2 · kind B2 · utility
7Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jan 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a label switching network, in normal times, packet transfer is performed using a protection-target label switching path set between a primary edge node device and a remote edge node device. Then, when a failure occurs in the primary edge node device, a secondary edge node device takes over the label switching path session from the primary edge node device and operates as the start-point node or the end-point node of the protection-target label switching path, to continue packet transfer using a backup label switching path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.