Invention Grant
US08908506B2 Method and system for switching APS service channel and automatic protection switching device
有权
APS业务通道和自动保护倒换设备切换方法及系统
- Patent Title: Method and system for switching APS service channel and automatic protection switching device
- Patent Title (中): APS业务通道和自动保护倒换设备切换方法及系统
-
Application No.: US13667419Application Date: 2012-11-02
-
Publication No.: US08908506B2Publication Date: 2014-12-09
- Inventor: Quangao Wan
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Brinks Gilson & Lione
- Main IPC: H04L1/00
- IPC: H04L1/00 ; H04L1/22 ; H04L12/24
Abstract:
A method and a system for switching an APS service channel, and an automatic protection switching device are disclosed. The method includes: a first recovered side reaches a wait-to-restore (WTR) state when the first recovered side receives information about transition to the WTR state from a second recovered side if a current state of the first recovered side is a first No Request (NR) state and if a state prior to transition to the first NR state is a Signal Fail (SF) state; and the first recovered side reaches a second NR state upon expiry of a WTR time of the first recovered side after receiving WTR time expiry information sent by the second recovered side. Therefore, the user can know the WTR state of the first recovered side clearly.
Public/Granted literature
- US20130128728A1 METHOD AND SYSTEM FOR SWITCHING APS SERVICE CHANNEL AND AUTOMATIC PROTECTION SWITCHING DEVICE Public/Granted day:2013-05-23
Information query
