Protection switching method, network, and system
US10033573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2015 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a protection switching method, network node, and system, where a communication method includes: when a first transport entity changes from a standby state to an active state, determining that in a second protected domain, there is only a protection transport entity that is connected to the first boundary node; switching a service to a first protection transport entity; and sending a first automatic protection switching APS message that carries a request of triggering inter-domain protection switching. By using the protection switching method, network node, and system that are provided by the embodiments of the present invention, end-to-end protection switching may be implemented, which enhances robustness of a protection network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.