Queue resynch: synchronous real-time upgrade of a distributed switching system
US6473433B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Oct 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5674
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A switch of a network connected to a switch control processor. The switch includes port cards which receive packets from and send packets to the network. The switch comprises a switch control processor for providing control information. The switch includes fabrics for switching the packets. The fabrics receive control information from the switch control processor but all the fabrics only implement the control information at a same logical time when each fabric receives a control initiation signal from one of the port cards. Each respective fabric continuously operating on packets before, during and after each respective fabric receives the control initiation signal. A method for switching packets. The method includes the steps of receiving packets at a port card of a switch from a network. Then there is the step of sending fragments of each packet to fabrics of the switch. Then there is the step of distributing control information from a switch control processor to the fabrics of the switch as the port card continues to receive packets. Next there is the step of receiving a control initiation signal from a switch control processor through the network at the port card. Then there is…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.