Network architecture and method of providing link protection in a bidirectional data traffic network
US6813241B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1999 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Dec 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network architecture for use in a data traffic network that includes a plurality of nodes and a plurality of data links coupling the nodes. The network architecture includes a working data link(220) that forms a signal pathway between a first router (200) and a second router (210) within the network. A protection data link(255) is likewise provided and forms a second signal pathway. The routers (200, 210) include both working data ports (312) and protection data ports (314) with each port including associated transmit and receive terminals. A combination of line splitting devices (250), line selection devices (260) and switch arrays (430, 435) are used to switch the flow of traffic data from the working data link (220) to the protection data link (255) or a protection channel (450) as is appropriate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.