Method for realizing many to many protection switching of ring network
US7924707B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jul 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/437
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for realizing many to many protection switching operation of ring network including: determining information of a switch request of M:N protection switching of the ring network, a destination node of the switch request, a source node of the switch request, a flag of long or short path, a status of bridging and switching, a channel number of protected working channel, and utilization condition of protection channels; carrying the information in a signaling and transferring it on the ring network; upon receipt of the signaling, performing the M:N protection switching of the ring network by a ring network node according to the information in the signaling. Therefore, the format of APS protocol signaling provided in this invention includes the information necessary for protection switching. This invention also provides an effective transmission approach of APS protocol signaling for protection switching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.