SNTPv4 is adapted by NTP, mainly supporting synchronous network computer clock mechanisms. SNTP is suitable for the entire NTP execution unwanted or incorrect. When using the current and previous NTP, SNTP version, SNTPv4 does not change the NTP specification and the original implementation process, which is further improved to NTP, supports accurate and reliable operation in a simple, stateless remote process call mode, this Similar to the UDP / TIMT protocol.
It is reported that SNTP is only used for the end of the synchronous subnet. The SNTP client depends on another synchronous SNTP client. The SNTP server can only operate in the subnet end (ie, layer 1) and configuration. There is no other synchronization source in addition to useful Reliable Radio Wave (RADIO) and modem time servers. The reliability of the basic server is generally achieved through redundant resources, different subnet pathways, and complete NTP operation algorithms. But at the same time, the synchronization source in the radio wave and modem is often erroneously or transmitted in a time. So, use more attention when using SNTP.
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