Path resolution in InfiniBand and ROCE networks
US10397096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Oct 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mechanism is provided in a data processing system comprising at least one processor and at least one memory, the at least one memory comprising instructions that are executed by the at least one processor and configure the at least one processor to implement a path query cache. Responsive to receiving a path query from a process executing in the data processing system, the path query cache performs a lookup of the path query in the path query cache. The path query identifies a source port, a source address and a destination address. The path query cache stores a plurality of entries, each entry comprising a source port, a source address, a destination address, the source and destination global identifiers, and good/bad flag indicating whether a path associated with the entry is available or not. Responsive to the path query cache determining the path query matches a valid entry in the plurality of entries, the path query cache returns a result to the process. The result comprises the source and destination global identifiers and the good/bad flag from the valid entry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.