Offline queries in software defined networks
US9736064B2 · kind B2 · utility
1Cited by
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4Claims
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Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/283
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for finding a packet's routing path in a network includes intercepting control messages sent by a controller to one or more switches in a software defined network (SDN). A state of the SDN at a requested time is emulated and one or more possible routing paths through the emulated SDN is identified by replaying the intercepted control messages to one or more emulated switches in the emulated SDN. The one or more possible routing paths correspond to a requested packet injected into the SDN at the requested time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.