Peripheral component interconnect express (PCIe) ping in a switch-based environment
US9563591B2 · kind B2 · utility
2Cited by
11References
14Claims
0Family size
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Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Jan 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sideband PCI Express (PCIe) packet initiator in a distributed PCIe switch fabric verifies a PCIe connection between a host device and a PCIe endpoint device without having to power on the host device. The packet initiator assembles a PCIe test packet that acts as a ping for testing reachability of the endpoint device, from the perspective of the host device. The test packet may also verify configurations and settings of the path to the endpoint device. The distributed switch fabric is configured to compare completion data with expected results to verify the PCIe connection, without having to boot the host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.