Topology discovery in a dual ring network
US7599315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2002 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Aug 27, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/437
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The resilient packet ring (RPR for short) is receiving much attention as a telecommunications network architecture. The RPR consists of dual counter-rotating ringlets and implements a ring protection scheme such as ring wrap and source steering. Topology discovery is an important aspect of the network management of the RPR. Herein described is a new topology discovery algorithm which performs in multiple phases. According to one phase of the algorithm, a station on the ring periodically exchange with only its neighboring stations a control messages containing a topology database. The topology database indicates addresses of stations on the ring and their link status. The algorithm should find applications not only in RPR but also other ring architectures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.