Dynamic forwarding adjacency
US7675848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Mar 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique treats a protected forwarding adjacency (FA) as a dynamic entity in that it allows a backup tunnel associated with the FA to carry traffic for the FA, when it's primary tunnel has failed, up to a predetermined amount of time. If after the predetermined amount of time has elapsed and the FA has not recovered (e.g., the primary tunnel has not been reestablished), a network topology change is automatically triggered causing the network to converge on a new network topology. By triggering the network topology change, a path that is more optimal than the path associated with the backup tunnel may be subsequently determined to carry the traffic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.