System and method for calculating protection routes in a network prior to failure
US6859431B1 · kind B1 · utility
7Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for automatically generating a protection route as an alternative to a working route through a network of switches prior to network failure. A switch selects the proposed protection route so that the protection route is disjoint from the working route. Next, a switch or switches determines whether bandwidth is available for the proposed protection route. If so, the protection route is set-up for activation when needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.