Clock reporting method and device

A clock and clock synchronization technology, applied in the field of communication, can solve problems such as unproposed solutions, achieve the effect of maintaining frequency synchronization stability and solving vibration

Active Publication Date: 2011-11-16
ZTE CORP
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  • Abstract
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  • Claims
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  • Clock reporting method and device

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Embodiment Construction

[0023] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] figure 1 is a flow chart of a clock reporting method according to an embodiment of the present invention. Such as figure 1 As shown, the clock reporting method according to the embodiment of the present invention includes:

[0025] Step S102, the upstream device sends a notification message to the downstream device when a master / standby switchover occurs;

[0026] In step S104, the downstream device receives the notification message and keeps locking the current clock source.

[0027] Through the method provided in this embodiment, when the master-standby switchover occurs on the upstream device, the downstream device can sense and keep the lock on the clock source in time, thus overcoming...

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Abstract

The invention discloses a clock reporting method and device. The method comprises the following steps: upstream equipment transmits a notification message to downstream equipment when undergoing main-standby switching occurs; and the downstream equipment receives the notification message and keeps locking a current clock source. Through adoption of the technical scheme disclosed by the invention, the problem of network oscillation caused because the upstream equipment undergoes the main-standby switching in the prior art is solved so that the effect of maintaining frequency synchronization stability in a network is realized.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a clock reporting method and device. Background technique [0002] In communication network PTN (Packet Transfer Network, packet transport network) equipment, clock frequency synchronization generally adopts SSM (Synchronization Status Message, clock synchronization status signal) technology. When the SSM synchronizes the frequency, according to the quality level and priority of the clock source, the line with the best quality level signal is selected as the synchronization clock source, and the most upstream device transmits the clock quality level downward step by step. When the upstream device fluctuates and the clock source switches, the downstream devices will be affected step by step, and it often takes a long time to reselect the clock source and stabilize it. When the upstream device has locked the line clock source, but the active main control fails and switches to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/00H04L1/22
Inventor 瞿艳霞赵洪广宋玲玲
Owner ZTE CORP
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