Method and apparatus for providing an interface between a plurality of frame relay networks
US6209039A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/2854
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, method, and computer program product for providing a resilient network-to-network interface (RNNI) between a first frame relay network and a second frame relay network. The RNNI comprises a plurality of data links that connect a master node in the first network to a slave node in the second network. The RNNI is initialized by operating an independent instance of a Link Integrity Verification (LIV) routine on each of the data links, returning an UP or DOWN status. One of the data links is designated as the ACTIVE data link, and the remaining data links are designated as INACTIVE. Once the RNNI is initialized, the ACTIVE data link is monitored using RNNI link management procedures including the LIV routine and a Permanent Virtual Circuit (PVC) polling routine, and the INACTIVE data links are monitored using the LIV routine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.