SNTP concepts

Simple Network Time Protocol (SNTP) is used to keep device clocks synchronized. By using timestamps that are kept synchronized, SNTP is useful for tracking processes and for interactions between systems.

i5/OS^® SNTP is based on Request for Comments (RFC) 2030. You can view RFC 2030 by searching for the number with the RFC index search engine located on the RFC editor Web site.

Before working with SNTP, you need to be familiar with the concepts of SNTP client and SNTP server.

• SNTP client
  When Simple Network Time Protocol (SNTP) is configured as a client, the i5/OS operating system retrieves a time value from an external time source.

• SNTP server
  When you configure the i5/OS operating system as an SNTP server, your system acts as a time server for other devices.

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