High-capacity WDM-TDM packet switch
US6876649B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0033
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A self-configuring distributed packet switch which operates in wavelength division multiplexed (WDM) and time division multiplexed (TDM) modes is described. The switch comprises a distributed channel switching core, the core modules being respectively connected by a plurality of channels to a plurality of high-capacity packet switch edge modules. Each core module operates independently to schedule paths between edge modules, and reconfigures the paths in response to dynamic changes in data traffic loads reported by the edge modules. Reconfiguration timing between the packet switch modules and the channel switch core modules is performed to keep reconfiguration guard time minimized. The advantage is a high-capacity, load-adaptive, self-configuring switch that can be distributed to serve a large geographical area and can be scaled to hundreds of Tera bits per second to support applications that require, very high bandwidth and a guaranteed quality of service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.