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A time synchronization method, relay equipment and device

A relay equipment, time synchronization technology, applied in the field of communication, can solve problems such as many restrictions, high cost requirements, increase system complexity, etc., to achieve the effect of improving reliability, saving costs, and simplifying network structure

Active Publication Date: 2021-11-02
RAISECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most important and commonly used method is to deploy multiple NTP servers in the network and select the optimal NTP server in real time to provide time synchronization services for devices in the network, thereby ensuring the reliability and accuracy of network time. This method requires the NTP client on the device to support the configuration of multiple NTP servers, which has certain requirements on the device and has many restrictions, which increases the complexity of the system; in addition, because multiple NTP servers need to be configured, the time synchronization service system needs to be available for application. The license of the NTP server also has high cost requirements

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  • A time synchronization method, relay equipment and device
  • A time synchronization method, relay equipment and device
  • A time synchronization method, relay equipment and device

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Embodiment Construction

[0091] It should be noted that "first", "second", "third", and "fourth" in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0092] The specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementations described here are only used to illustrate and explain the present application, and are not intended to limit the present application.

[0093] When the NTP server fails or the link between the NTP server and the NTP customer service terminal fails, the NTP customer service terminal needs to wait for the recovery of the NTP server failure or the recovery of the link failure between the NTP server and the NTP customer service terminal before performing time synchronization session, to complete time synchronization; and during the failure period,...

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Abstract

The present application discloses a time synchronization method, a relay device and a device. The method includes: after the relay device detects that the NTP server is in a fault state, the working mode of the relay device is switched from the transparent transmission mode to the relay service mode; After receiving the first time synchronization request message sent by the NTP client to the NTP server, the relay device in the relay service mode determines the first time and the second time according to the time information stored locally. The first time is used to indicate the NTP The server receives the time stamp of the first time synchronization request message, and the second time is used to instruct the NTP server to send the time stamp of the first time synchronization response message; the relay device in the relay service mode sends the time stamp carrying the first time to the NTP client and the first time synchronization response message of the second time, so that the NTP client completes time synchronization according to the first time and the second time.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a time synchronization method, relay equipment and device. Background technique [0002] NTP (Network Time Protocol, Network Time Protocol) is a time synchronization service protocol, and its purpose is to provide a unified time synchronization service for devices running on the network. When the NTP server is in a normal state, the NTP client and the NTP server perform normal NTP message exchange, and the relay device is transparent to the above two types of devices, that is, the NTP client device and the NTP server device are not aware If there is a relay device, the mode of the relay device is transparent transmission mode. When the NTP server fails or the link between the NTP server and the relay device fails, the NTP synchronization between the NTP client and the NTP server will time out and the time cannot be synchronized. For a device that is periodic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06
CPCH04J3/0667H04J3/0682
Inventor 王芳
Owner RAISECOM TECH