Joint switching method for an aggregation node, aggregation node and system
US8755685B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jul 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A joint switching method for an aggregation node, an aggregation node, and an optical network protection system including an aggregation node are provided. By monitoring information transferred between an active optical line terminal (OLT) and a broadband network gateway (BNG), the aggregation node finds a fault in time according to the monitored information and when a fault occurs, the aggregation node starts a local protection solution, enables a corresponding backup port connected to a backup OLT corresponding to the active OLT, and disables an active port connected to the active OLT. Through the method, when the active OLT is switched to the backup OLT, the aggregation node performs joint switching, which ensures normal communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.