A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Network Time Protocol Leap Smear REFID
Author : Harlan Stenn
Filename : draft-stenn-ntp-leap-smear-refid-00.txt
Pages : 5
Date : 2016-03-14
Abstract:
RFC 5905 [RFC5905] and earlier versions of NTP are the overwhelming
method of distributing time on networks. Leap Seconds will continue
to exist for a good number of years' time, and since the timescale
mandated by POSIX effectively ignores any instances where there are
not 86,400 seconds' time in a day, something must be done to reliably
synchronize clocks during the application of leap second corrections.
One mechanism for dealing with the application that has recently
become visible is to apply the leap second using a "smear", where the
time reported by leap-second aware servers is gradually adjusted so
there is no major disruption to time synchronization when processing
a leap second.
While leap second processing can be expected to be properly handled
by up-to-date software and by time servers, there are large numbers
of out-of-date software installations and client systems that are
just not able to properly handle a leap second correction.
This proposal offers a way for a system to generate a REFID that
indicates that the time being supplied in the NTP packet already
contains an amount of leap smear correction, and what that amount is.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-stenn-ntp-leap-smear-refid/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-stenn-ntp-leap-smear-refid-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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