Fast protection switchover in a transport network
US9450774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Sep 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0668
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Presented herein are techniques that enable fast switchover or reversion between label switched paths. In accordance with examples presented herein, a working label switched path is added to a fast switchover protection group that is configured to carry traffic from an ingress network device to an egress network device through a transport network. A restoration label switched path associated with the working label switched path is also added to the fast switchover protection group. The fast switchover protection group is stored at the ingress network device. After storing the fast switchover protection group at the ingress network device, at least the working label switched path is used to carry traffic through the transport network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.