Method and apparatus for protection switching in virtual private networks
US7082101B2 · kind B2 · utility
16Cited by
19References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2001 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5651
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Protection switching of a virtual private network is provided whereby working VPN paths and protection VPN paths are defined. The working VPN path is monitored for increased data traffic and failures, and in response, data is switched from the working VPN path to the protection VPN path. The working VPN path is monitored for a return to proper functioning and normal data conditions, and data is then switched back from the protection VPN path to the working VPN path. Additionally, data capacity is managed through virtual bandwidth classes, and different classes of qualities of service are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.