Multi-stage packet switching system with alternate traffic routing
US7489625B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2005 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jan 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0058
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In general, in one aspect, the disclosure describes a multi-stage switch having a plurality of ingress switching modules to receive data and to generate frames that are transmitted as a wavelength division multiplexed signal. The multi-stage switch further includes a core switching module operatively connected to receive the wavelength division multiplexed signal from the at least one ingress switch module and to switch the frames. The multi-stage switch additionally includes a plurality of egress switching modules to receive the wavelength division multiplexed signal from the core switch module and to transmit data. The multi-stage switch is capable of detecting faulty paths and transmitting data through fault-free paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.