End-to-end hitless protection in packet switched networks
US9369409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Sep 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system are described for providing hitless protection in a packet switched network having source nodes and destination nodes. The method includes enabling a working path and a protecting path between the source and destination nodes. The working path is non-overlapping with respect to the protecting path. The method further includes replicating traffic in a given one of the source nodes to generate replicated traffic. The method also includes forwarding the traffic and the replicated traffic through a working path and a protecting path, respectively, from the given one of the source nodes to a particular one of the destination nodes. The method additionally includes delivering a hitless-protected service in the particular one of the destination nodes by selecting traffic packets received from either the working path or the protecting path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.