Method and apparatus for setting up backup path
US7639603B2 · kind B2 · utility
4Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2004 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Dec 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of setting up a backup path for a primary path on a network includes the steps of grouping nodes constituting the primary path into segments each including a plurality of nodes, and setting a backup path connecting between a head node and end node of each of the segments separately for each segment by notifying of information about segment position by a primary-path-provision requesting message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.