[ntp:questions] Re: What went wrong with the leap second

David L. Mills mills at udel.edu
Sun Jan 22 04:23:52 UTC 2006


Serge,

"All" means all the survivors of the clustering algorithm.

Dave

Serge Bets wrote:
> Hello Ulrich,
> 
>  On Friday, January 20, 2006 at 15:01:21 +0100, Ulrich Windl wrote:
> 
> 
>>Another good question is how NTP will behave on different references
>>showing different leap bits: Will it absolutely trust the current sync
>>peer, or will it make a majority decision?
> 
> 
> The ntp daemon will take the bitwise OR of all sources leap bits. Though
> I don't know what exactly means "all" here: Really all reachable, all
> survivors, all candidates, or such. A single leap=01 source wins over
> any number of leap=00 refclocks, servers, and NIST leapsecond files.
> 
> 
> 
>>Also, can a bit mistakenly set via one reference be cleared by another
>>reference? (Or malicuosly be reset?)
> 
> 
> No. But I have a plan to change that, permitting to a valid NIST
> leapsecond file to master daemon's leap bits.
> 
> 
> Serge.




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