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A time synchronization method and device

A time synchronization and system time technology, applied in the Internet field, can solve problems such as abnormal local system applications

Active Publication Date: 2019-06-04
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The present invention provides a time synchronization method and device to solve the problem that in the existing time synchronization scheme, time synchronization will change the local system clock, thus causing abnormalities in certain applications of the local system

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  • A time synchronization method and device
  • A time synchronization method and device

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0024] See figure 1 , is a schematic flowchart of a time synchronization method provided by an embodiment of the present invention, wherein the time synchronization method can be applied to a target STS (Security Time System, secure clock system) server, wherein the STS server is a server running an STS, Such as figure 1 As shown, the time synchronization method may include the following steps:

[0025] Step 101. When the target STS server is initially running, determine the difference between the server's security clock and ...

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Abstract

The invention provides a time synchronization method and device. The method comprises the steps of determining and storing a difference value between a server security clock and a server system clockaccording to a set security clock when a target STS (Security Time System) server initially operates; determining a current sever security clock according to a current server system clock and the stored difference value between the server security clock and the server system clock when a time synchronization request message sent by a client periodically is received; and sending the determined current sever security clock to the client, thereby enabling the client to determine the difference value between the two clocks according to the received current sever security clock and the local clientsystem clock of the client, and determining a real-time client security clock according to the difference value of the two clocks and the real-time client system clock. Through application of the embodiment of the invention, the condition that special business cannot be normally operated resulting from changing the client local system clock through time synchronization can be avoided.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a time synchronization method and device. Background technique [0002] In the field of Internet technology, time is very important. Many applications in the field of Internet technology have very high requirements for the uniformity and accuracy of time. For example, for WORM (Write Once Read Many, Write Once Read Many) technology in For applications in distributed storage systems, an effective clock system related to the time stamp of electronic documents is a key element in the realization of WORM technology. [0003] At present, NTP (Network Time Protocol, Network Time Protocol) protocol is usually used to realize time synchronization in the Internet, which uses the time message transmitted by GPS (Global Positioning System, Global Positioning System) time code as a reference standard, and adopts Client / Server (client / server) structure, with a fairly high flexibility....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04L29/08
Inventor 李航
Owner NEW H3C TECH CO LTD
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