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Method and device for whole-network clock synchronization management

A network clock and clock technology, which is applied in the field of clock synchronization management of the whole network, can solve problems such as instability and clock oscillation, and achieve the effect of improving clock stability

Active Publication Date: 2017-07-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of clock oscillation and instability within a certain period of time caused by the clocks of related network elements in the network adjusting their direction layer by layer when the quality of a certain clock source in the synchronization layer is degraded or lost, the present invention provides a Method and device for network-wide clock synchronization management

Method used

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  • Method and device for whole-network clock synchronization management
  • Method and device for whole-network clock synchronization management
  • Method and device for whole-network clock synchronization management

Examples

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no. 1 example

[0040] Such as figure 1 As shown, it is a flow chart of the steps of the method for network-wide clock synchronization management in the first embodiment of the present invention, and the method includes the following steps:

[0041] Step 101, acquire and save network element information, link connection information and clock source information sent by each network element.

[0042] In this step, the management network element acquires and saves network element information, link connection information and clock source information reported by each network element.

[0043] Specifically, when each network element is powered on, the management network element configures an identifier for each network element, and the identifier is the network element information of each network element. In addition, each network element is connected to a connection network element on each interface. Therefore, when obtaining the network element information reported by each network element, the n...

no. 2 example

[0052] Such as figure 2 As shown, it is a flow chart of the steps of the method for network-wide clock synchronization management in the second embodiment of the present invention, and the method includes:

[0053] In step 201, a registration request message periodically sent by each network element is received.

[0054] In this step, specifically, when the network elements are powered on, the management network element configures an identifier for each network element. After each network element has an identifier, it periodically sends a registration request message to the management network element. The management network element receives the registration request message periodically sent by each network element. Wherein, the registration request message carries network element information, and the network element information includes a first identifier of a network element and a second identifier of a connected network element connected to each interface of the network e...

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Abstract

The invention provides a method and a device for whole-network clock synchronization management. The method comprises the following steps of obtaining and storing network element information, link connection information and clock source information which are sent by each network element; receiving link anomaly information reported by one network element and obtaining a link anomaly network element according to the link anomaly information and the network element information, the link connection information and / or the clock source information; and carrying out link adjustment on a lower network element of the link anomaly network element according to the link connection information and the clock source information. According to the method and the device, the problems of clock shock and instability within a period of time due to layer-by-layer direction adjustment of the clocks of the related network elements in the network when the quality of one clock source of a synchronization layer in a layer-by-layer synchronization way is reduced or lost are solved, and the stability of the clock of the lower network element is improved.

Description

technical field [0001] The invention relates to the field of digital synchronous networks, in particular to a method and device for clock synchronization management of the entire network. Background technique [0002] In a digital synchronization network, all network elements must be synchronized with PRC (Primary Reference Clock) or LPR (Local Primary Reference, regional reference clock source) to ensure normal service reception. When realizing clock synchronization, the method for realizing synchronization mainly depends on some synchronization protocols, such as SSM (Synchronization Status Message, synchronization status message) and the like. The synchronization mode of these protocols is master-slave synchronization layer by layer, and the protocol runs on each network element, which is relatively efficient. However, this fully distributed synchronization also brings about a problem, that is, when the quality of the main clock source in the synchronization layer is deg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04L29/06
CPCH04J3/0697H04L41/06H04L41/064H04L43/06H04L43/08H04L43/10H04L65/1073
Inventor 曹海萍郭文佳
Owner ZTE CORP