[LEAPSECS] Leap Seconds in NTP

[Jonathan E. Hardis]

>Does anybody have any thoughts on the effect(s) of the previous and/or

>upcoming leap seconds on NTP (v2, v3, and/or v4)?  For example, on

>protocols that implement sub-second timers (such as BFD)?  TCP?  IGMPv3?


Please see 
http://www.eecis.udel.edu/~ntp/ntpfaq/NTP-s-algo.htm#AEN2432 ("What 
Happens During a Leap Second").  It's not a complete answer, but it 
will get you started.

You can find additional information in the NTP RFC.  In 
http://www.eecis.udel.edu/~mills/database/rfc/rfc1305/rfc1305c.pdf , 
see "5. Appendix E. The NTP Timescale and its Chronometry" starting 
at page 70 (21 of the PDF).

For the most up to date information, browse around starting at 
http://www.ntp.org/ .

   - Jonathan