Broadcast for a distributed switch network
US9292462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jul 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0026
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for broadcasting a command in a distributed switch, at a first switch module within the distributed switch. Embodiments receive a request to reset a PCIe link for a first host device, the first host device connected to a plurality of downstream PCIe devices through the distributed switch. A routing table specifying a plurality of downstream switch modules, connected to the first switch modules by one or more ports of the first switch module, is identified. Embodiments suspend PCIe traffic for the first host device on the one or more ports of the first switch module. Broadcast messages are transmitted to the plurality of downstream switch modules, specifying a first reset operation. Upon receiving an acknowledgement message from each of the plurality of downstream switch modules specified in the routing table, embodiments resume PCIe traffic for the first host device on the one or more ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.