Graceful insertion of a tree into a ring network
US5522047A · kind A · utility
22Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1993 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Dec 15, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/433
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for providing graceful insertion of a station or tree into a ring type network. According to one aspect of the invention, graceful insertion is achieved after coupling a tree to a tree link of a master port by switching the tree into a local ring, holding the local ring, and awaiting a token on the network ring. After a token is received on the network ring, the tree is switched from the local ring to the network ring. Monitoring ring status in hardware provides the responsiveness necessary which software graceful insertion typically cannot provide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.