Dynamic establishment of virtual circuits multisegment pseudowires
US8787218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a technique for automatically establishing a virtual circuit from one edge device to another through a core network. The virtual circuit may comprise one or more pseudowire segments. These pseudowire segments extend between adjacent edge and core devices within the core network. Pseudowire segments through the core network are automatically stitched together as a setup message is forwarded from a first edge device to a second edge device through the core network. A virtual circuit is established in one direction, and packets are forwarded in an opposite direction. With the present invention, a virtual circuit comprising any number of pseudowire segments, as well as two attachment circuits, may be established in an automatic and efficient manner upon being initiated by the first edge device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.