System and method for facilitating recovery from communication link failures in a digital data network
US6999459B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network comprises a plurality of switching nodes interconnected by communication links for transferring digital packets. At least one switching node in the network pre-establishes a bypass virtual circuit through the network to bypass an element of the network, such as a switching node or a communication link, in the network. The bypass virtual circuit defines a path to another switching node in the network. The first switching node uses the bypass virtual circuit so constructed in forwarding of a packet in the event of a failure or other malfunction of the element if the first switching node would otherwise transfer the packet over that element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.