Distributed protection switching
US7313087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2003 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for responding to failures of connections in a network. In one embodiment, there is a system for responding to destination failures involving SPVx (switched-permanent virtual circuit) connections includes a primary source node. The system includes a primary source switch for producing an SPVx connection, the primary source node in communication with the primary source switch. The system includes a primary destination node. The system includes a primary destination switch for receiving the SPVx connection, the primary destination node in communication with the primary destination switch, the connection following a primary path between the primary source node and the primary destination node. The system includes an alternate destination node. The primary destination switch redirects automatically the primary connection to the alternate destination node along an alternate path when the primary destination switch detects a failure of the primary path. The alternate path is formed by the primary source node and the alternate destination node only after the primary path experiences a failure. The primary destination switch releases the SPVx connection after there is a fault dete…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.