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Time synchronization method, device, and equipment

A time synchronization device and time synchronization technology, applied in the field of communication, can solve problems such as time out of synchronization, link delay and jitter measurement inaccuracy, errors, etc., achieve high-precision time synchronization, realize time synchronization, and ensure time synchronization.

Inactive Publication Date: 2018-11-02
NEW H3C TECH CO LTD
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Problems solved by technology

[0003] However, both the master device and the slave device use the time of their respective clock chips. Once the time of the clock chip is different, the time of the master device will be out of sync with the time of the slave device. For example, the system log occurs at time A, and the master device records the system The log occurs at time A, while the slave device records the system log at time B. Obviously, for the same system log, the master device and the slave device record different occurrence times
For another example, due to the asynchronous time of the master device and the slave device, the NQA (Network Quality Analyzer, network quality analysis) link delay and jitter measurement are inaccurate, resulting in wrong results

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Embodiment Construction

[0031] The terminology used in this application is for the purpose of describing specific embodiments only, not to limit the application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second information may also be called first information. Dependin...

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Abstract

The present application provides a time synchronization method, device and equipment. The method comprises the following steps: acquiring current system time of a master device from a clock chip of the master device; adding the system time to a time synchronization message; transmitting the time synchronous message to a slave device, so that the slave device updates the local time to the system time carried in the time synchronization message. Through the technical scheme of the present application, time synchronization of the master device and the slave device can be ensured, time synchronization of the distributed network device can be realized, and high-precision time synchronization can be realized.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a time synchronization method, device and equipment. Background technique [0002] A distributed network device may be composed of a master device and a slave device, and each of the master device and the slave device has its own CPU (Central Processing Unit, central processing unit) and runs its own software. The master device is responsible for the maintenance and management of the distributed network devices, and the slave device is responsible for the business processing of the distributed network devices. [0003] However, both the master device and the slave device use the time of their respective clock chips. Once the time of the clock chip is different, the time of the master device will be out of sync with the time of the slave device. For example, the system log occurs at time A, and the master device records the system The log occurs at time A, wh...

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/0638
Inventor 项红亮
Owner NEW H3C TECH CO LTD
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