A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Simple Network Time Protocol (SNTP) Version 4 for
IPv4, IPv6 and OSI
Author(s) : D. Mills
Filename : draft-mills-sntp-v4-00.txt
Pages : 27
Date : 2003-9-17
This memorandum describes the Simple Network Time Protocol (SNTP)
Version 4, which is a subset of the Network Time Protocol (NTP) used
to synchronize computer clocks in the Internet. SNTP can be used when
the ultimate performance of the full NTP implementation described in
RFC-1305 is not needed or justified. SNTP Version 4 clarifies
certain design features of NTP which allow operation in a simple,
stateless remote-procedure call (RPC) mode with accuracy and
reliability expectations similar to the UDP/TIME protocol described
in RFC-868.
The only significant protocol change in SNTP Version 4 is a modified
header interpretation to accommodate Internet Protocol Version 6
(IPv6) (RFC-1883) and OSI (RFC-1629) addressing. However, SNTP
Version 4 includes an anycast mode and a public-key based
authentication scheme designed specifically for broadcast and anycast
applications. The authentication scheme extension is described in
another RFC. Until a definitive specification is published, these
extensions should be considered provisional. In addition, this memo
introduces the kiss-o'-death message, which can be used by servers to
suppress client requests as circumstances require.
This memorandum obsoletes RFC-1769, which describes SNTP Version 3,
and RFC-2030, which describes SNTP Version 4.
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