Method, device, and system for deferring switchback
US11146484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2017 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0654
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, a device, and a system for deferring a switchback. A first network device sends a query packet to a second network device, detects, according to the query packet, whether a route from the second network device to a destination device is available after receiving the query packet, and when it is available, the second network device sends a query response packet to the first network device in order to trigger the first network device to switch back from a secondary route to a primary route. The technical solution provided reduces a wait-to-restore time of the switchback, ensures that service data transmitted from the first network device to the second network device can be transmitted to the destination device, and facilitates smooth transmission of the service data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.