Local span mesh restoration (LSMR)
US7391720B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Sep 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/006
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An embodiment of the invention provides a method and apparatus for restoring a connection in a network. The connection is typically a sub network connection (SNC). In an embodiment, a failed line in a link connecting a first node and a second node is detected, where the failed line is associated with a sub network connection (SNC). The sub network connection (SNC) is then mapped to an alternate line in the link. The first node will change cross connections in a switch fabric in the first node, while the second node will change cross connections in a switch fabric in the second node, so that both nodes can transmit data on the selected alternate line, in order to restore the SNC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.