Futile neighbor state loop prevention in high availability networks
US7869347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Oct 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for detecting and managing a futile neighbor state loop during link state routing is disclosed. The method can include reading a threshold parameter for link state routing, wherein the threshold parameter indicates a number of routing attempts, and performing link state routing to a node via a primary interface. The method can further include detecting a futile neighbor state loop during link state routing to the node via the primary interface by detecting a number of routing attempts that has reached the threshold parameter and detecting an available backup interface to the node. The method can further include suspending the primary interface to the node and switching routing to the backup interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.