This article mainly talks about the main functions of SNTP server, and expounds the differences between SNTP in protocol and NTP protocol, and the matters needing attention in SNTP server's application in time synchronization service system, which is different from NTP server. It is convenient for users to select network timing server in different systems correctly.

SNTP server is a time server device that implements the benchmark with the function of SNTP protocol. It is reduced on the basis of NTP protocol and belongs to the subset of NTP network time protocol. NTP protocol can span all kinds of platforms and operating systems. In order to ensure high accuracy, complex algorithms are needed, but in many practical applications, the accuracy of seconds can satisfy the application of practical systems.

In order to satisfy the requirement of time synchronization in many cases, SNTP protocol simplifies the original access protocol on the basis of NTP protocol, and makes the development and application of network time easier under the premise of ensuring the accuracy of time. The SNTP protocol that the SNTP server involves is mainly about the access security designed by the NTP protocol, and the automatic migration part of the server has been reduced to achieve the goal of more simple time service.

SNTP server was first applied to the function of time synchronization, mainly aiming at the requirement of PC time synchronization. In the initial time protocol designer, the computer meets the SNTP protocol requirements. In a complete network, all PC machines have their own local clock. Each clock itself keeps its time running normally by its own built-in crystal oscillator. However, due to the functional reasons such as internal crystal, the clock in the PC machine will generate several seconds or even minutes in the running process every day. The error of self travel time. In the long run process, the time bias in a network system will become larger and larger, resulting in different time between the PC machines.

In this case, configuring a SNTP server suitable for PC network event protocol has become the key to ensure the uniform time of equipment in the whole network. The SNTP server is implemented as a set of fully functional network event synchronization server devices. The SNTP server meets the standard time information and provides the delivery service. The standard SNTP server can receive the time information from the satellite, and provide standard time information service for the devices in the network through the SNTP protocol.

The SNTP server can now be applied to most of the network systems that require time synchronization services. The SNTP protocol followed is interoperable with the server of the NTP protocol, that is, the SNTP client can work with the NTP server, NTP customers can also accept the time messages sent by the SNTP server, and the two are inseparable.

It should be noted that on some occasions, the function of NTP server can not be replaced by SNTP server, and NTP server can completely replace SNTP server. So users should be careful when choosing the network time server. It is recommended that the NTP network time server equipment that fully satisfy the NTP protocol should be selected.

Xi'an is specializing in the time and frequency domain. At present, the NTP protocol module developed by ourselves has been widely applied in the market and the sales of network time servers in the same industry. All the network time servers sold by our company are all standard NTP protocols to meet all the needs of NTP based time service customers.

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