Controlling forwarding devices in software defined networks
US10091054B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Aug 22, 2014 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Oct 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/557
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first forwarding device in a software defined network (SDN) detects disconnection of an out-band connection between the first forwarding device and a controller, sends an SDN packet to the controller via an out-band connection of a second forwarding device adjacent to the first forwarding device, and receives a response packet sent by the controller via the second forwarding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.