Identifying nodes in a ring network
US9602303B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Aug 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/286
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for determining a token master on a ring network are provided in which possession of an arbitration token permits a blade participating in the ring network to transmit a packet. According to one embodiment, when an event at a blade represents expiration of a timeout period for receipt of the token, a new token is transmitted onto the ring network. When the event represents receipt of the token, then the priority of the originating blade is compared that of the first blade. When the originating blade is higher priority, the token is transmitted to the next blade. When the originating blade is lower priority, the first blade is set as the originating blade and the token is transmitted to the next blade. When the priorities are equal, the blade becomes responsible for periodically transmitting a discovery marker onto the ring network to facilitate topology discovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.