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A system and method for clock synchronization between servers based on ptp protocol

A PTP protocol and clock synchronization technology, which is applied in time division multiplexing systems, electrical components, and multiplexing communications. It can solve the problems of inability to synchronize hardware clocks, and the difficulty of adapting NTP technology to achieve low transaction latency. Application requirements, high-precision clock time synchronization, and the effect of reducing time communication delay

Active Publication Date: 2019-06-25
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most servers use NTP synchronization technology, and the time synchronization can usually reach more than 100ms, and the hardware clock cannot be synchronized
However, in the face of the increasingly demanding application time synchronization requirements for current synchronous transactions, it is increasingly difficult for NTP technology to adapt to this requirement

Method used

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  • A system and method for clock synchronization between servers based on ptp protocol
  • A system and method for clock synchronization between servers based on ptp protocol

Examples

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Embodiment 1

[0040] This embodiment proposes a clock synchronization system between servers based on the PTP protocol, as shown in the attached figure 1 As shown, its system architecture includes:

[0041] The satellite navigation information receiving terminal is used to receive the timing signal, and convert the timing signal into a PTP signal and output it through the network port; the PTP signal is a precise clock synchronization protocol signal;

[0042] A synchronous Ethernet switch is a switch that supports the synchronous Ethernet protocol and supports PTP signal forwarding;

[0043] Several servers, the servers generate transactions with each other and are deployed in multiple places. The servers in various places are conventional servers, and the servers are equipped with PTP modules. The servers receive PTP signals and can analyze clock and time information.

[0044] In the clock synchronization system between servers in this embodiment, the local clock is started by default wh...

Embodiment 2

[0053]This embodiment proposes a clock synchronization system between servers based on the PTP protocol. On the basis of Embodiment 1, the satellite navigation information receiving end specifically uses GPS or Beidou signal receivers, which further increases the practicality and feasibility of the technical solution.

[0054] The satellite navigation information receiving end adopts GPS or Beidou signal receiver, wherein, GPS is the global positioning system of the United States, Beidou is the Chinese Beidou navigation system, abbreviated as BDS (BeiDou Navigation Satellite System); GPS or Beidou signal receiver receives GPS Or the Beidou signal and analyze it to obtain clock and time information, convert it into a PTP signal and send it to a synchronous Ethernet switch through Ethernet, and the PTP signal enters the public network.

[0055] The inter-server clock synchronization system also includes several ground-level switches, which are connected to the synchronous Etherne...

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Abstract

The invention discloses a system of synchronizing clocks of servers based on a PTP protocol, and relates to a server clock synchronization technology. The servers around the world, when being startedup, starts up the local clock by default, loads a PTP module drive after entering an operating system and obtains a PTP signal transmitted from a satellite navigation information receiving end throughaccessing a synchronous Ethernet switch; the servers around the world parse the PTP signal to obtain clock and time information, provides the clock information to system hardware and synchronizes thetime information to the operating system; and the servers realize high-precision clock time synchronization of multiple servers and reduce cross-server time communication delay through integral design of a network PHY chip, an IEEE1588 SMU chip and a network card chip supporting IEEE1588 synchronization. The system of synchronizing clocks of servers based on the PTP protocol can be deployed in each key application field conveniently and improves application transaction reliability greatly; and a method of synchronizing clocks of servers based on the PTP protocol is also provided.

Description

technical field [0001] The invention relates to server clock synchronization technology, in particular to a PTP protocol-based inter-server clock synchronization system and method. Background technique [0002] Some applications that require high time synchronization, such as stocks, futures, foreign exchange, and even online payment, have very high requirements for clock synchronization between servers. [0003] At present, most servers use NTP synchronization technology, and the time synchronization can usually reach more than 100ms, and the hardware clock cannot be synchronized. However, in the face of the increasingly high requirements for the application time synchronization of current synchronous transactions, it is becoming more and more difficult for NTP technology to adapt to this requirement. Therefore, there is an urgent need to develop and design a system or method for high clock synchronization between servers to achieve a technical breakthrough in server time ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06
CPCH04J3/0638H04J3/0667
Inventor 叶丰华李鹏翀
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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