[ntp:questions] Re: Leap bits, when to set?
David L. Mills
mills at udel.edu
Fri Dec 23 01:42:34 UTC 2005
The kernel modifications were after rfc-1305 on NTPv3 was published. I
described what the current ntpd does. The issue is not "processing"them,
but passing them along to dependent clients, who may have an poll
interval of over a day. Presumably, the current rewrite for NTPv4 will
make these points wickedly clear.
Tapio Sokura wrote:
> David L. Mills wrote:
>> The leap bits are set when the timing source, either modem, radio or
>> server, set them. However, they are provided to the kernel only on the
>> day of the leap.
> A clarification: are you talking about the protocol (NTP) or the
> implementation (ntpd), or both? I guess it is sensible for an
> implementation of NTP to "process" the leap bits only on those two days
> of the year leap seconds can occur, but the RFCs are a bit vague on
> that. They just talk about setting the bits on the day of insertion. But
> don't worry, I won't lose my sleep over this :)
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