Failure protection method based on ring protection link, device, and system
US10708081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/344
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure provide a failure protection method based on a ring protection link, a device, and a system, and nodes in the ring protection link include a forwarding device in an SDN. The method includes: receiving, by a network controller, a high-priority failure message sent by a first node, where the failure message includes information used to indicate a failure; obtaining, according to the failure message, data information about port state changes that are of the nodes and that are caused by the failure; and sending a high-priority switching message to each of the nodes, so that each of the nodes updates a local MAC address table according to the switching message, where the switching message includes the data information about port state changes that are of the nodes and that are caused by the failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.