System and method for slot deflection routing at optical router/switch
US7443790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2006 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Mar 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0084
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system and method for slot deflection routing of optical data packets. The method of the present invention includes the steps of establishing a schedule pattern that includes a plurality of time slots. The schedule pattern includes at least one time slot in which an ingress edge unit can communicate with a destination egress edge unit, at least one time slot in which the ingress edge unit can communicate with a intermediate edge unit, and at least one time slot in which the intermediate edge unit can communicate with the destination egress edge unit. The present invention also includes receiving a data packet at the ingress edge unit and determining if the schedule pattern allocates sufficient bandwidth to send the data packet from the ingress edge unit to the destination egress edge unit without deflecting the data packet through an intermediate edge unit. If enough bandwidth has been allocated, the data packet can be sent to the destination edge unit from the ingress edge unit without deflection. Alternatively, if enough bandwidth has not been allocated, the data packet can be deflected to an intermediate edge unit prior to being communicated to t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.