Service protection method and device based on automatic switched optical network
US8805180B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Sep 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a service protection method and device based on an automatic switched optical network (ASON), which are adapted to restoring a service when a fault occurs in the connection of the service. The method comprises: comparing a dynamic restoration lag time of the service with a protection switching lag time of the service; and starting a protection switching process to restore the service if the dynamic restoration lag time is greater than the protection switching lag time; and starting a dynamic re-routing process to restore the service if the protection switching lag time is greater than the dynamic restoration lag time. By the present invention, the reliability of the network is enhanced and the self-healing capacity of the ASON is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.