Method for managing failures on dynamic synchronous transfer mode dual ring topologies
US5982747A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Apr 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S370/909
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The dynamic synchronous transfer mode dual ring topology has two rings with opposite fiber directions. The dual rings may have a plurality of common nodes. A first channel may be established in a first segment extending between a first and second nodes. Tokens associated with the first channel may be provided. In this way, time slots may be transmitted in the first channel from the first node to the second node. If a fiber failure occurs in the first segment, the second node is likely to first detect the fiber failure and transmit a fiber failure message. It is then determined if the first channel extends across the fiber failure. If the first channel is affected by the fiber failure then a channel failure message is transmitted and the first channel is terminated and all the tokens associated with the first segment are removed. If the first channel is not affected then time slots are continued to be transmitted on the first channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.