What is the SNTP protocol?

Simple Network Time Protocol (SNTP) is a simplified, client-only version of NTP. SNTP can receive only the time from NTP servers; it cannot be used to provide time services to other systems. You can configure SNTP to request and accept packets from configured servers or to accept NTP broadcast packets from any source.

What is SNTP and how it works?

How SNTP Works. The SNTP protocol is a client-server protocol based on the exchange of packets of timing information. Generally, clients operate in a unicast mode. At periodic intervals, usually in the region of every 64 seconds, a SNTP client sends a request to a NTP server referencing its IP address.

What protocol does PTP use?

UDP: Typically, PTP uses UDP as its transport protocol (although other transport protocols are possible). The well known UDP ports for PTP traffic are 319 (Event Message) and 320 (General Message).

What SNTP means?

 SNTP (Simple Network Time Protocol) and NTP (Network Time Protocol) are describing exactly the same network package format, the differences can be found in the way how a system deals with the content of these packages in order to synchronize its time.

Where is SNTP used?

The simple network time protocol (SNTP) is a time synchronization protocol of the TCP/IP protocol family. It is based on the connectionless user datagram protocol (UDP) and can be used on all supporting devices to synchronize system time in IP networks (IPv4 and IPv6).

Is SNTP secure?

The use of the SNTP protocol as a main source or clock is not recommended. The main problem of this protocol is its low security. As it lacks an encryption method, it is vulnerable to attacks in which the time can be modified.


PTP supports transport over User Datagram Protocol (UDP). Transport over Ethernet is not supported. PTP supports multicast communication.

Is Sntp secure?

What is difference between NTP and SNTP?

NTP (Network Time Protocol) and SNTP (Simple Network Time Protocol) are similar TCP/IP protocols in that they use the same time packet from a Time Server message to compute accurate time. The difference between NTP and SNTP is in the error checking and the algorithm for the actual correction to the time itself.

What is SNTP vs NTP?

How is the simple network time protocol ( SNTP ) used?

The Simple Network Time Protocol (SNTP) is an adaptation of the Network Time Protocol (NTP) used to synchronize computer clocks in the Internet. The NTP, specified in RFC-1305, is used to synchronize computer clocks in the global Internet.

When was the first version of SNTP made?

In the event that this is not available, additional time servers are available as backup. The first version of SNTP dates from 1992 and is specified in RFC 1361. This describes the protocol as a simplified variant of the network time protocol, which is also used to adjust the system time in networks.

Which is a spin-off of the NTP protocol?

A spin-off from NTP or SNTP is Simple Network Time Protocol, which is basically as the name suggests, a simplified version of NTP. SNTP is generally used in small devices such as low computational power micro-controllers. It enables low power devices can synchronize the time of NTP servers on a network.

Who is the creator of the Network Time Protocol?

Network Time Protocol, or NTP as it is more commonly known, provides a mechanism to synchronize the time of computing devices and other network infrastructure. The protocol was originally developed for the Linux operating system by Dr D Mills, University of Delaware.