[ntp:questions] minpoll 3

David L. Mills mills at udel.edu
Tue Mar 25 16:16:40 UTC 2008


Can we table this unil the next snapshot? It certainly works as 
advertised here.


Serge Bets wrote:
> Hello David,
>  On Sunday, March 23, 2008 at 20:07:33 +0000, David L. Mills wrote:
>>You might peek with the ntpdc sysstats command and vet the counters.
>>Verify no error messages at startup; the configuration code might have
>>balked when attempting to lower the discard average. Verify with ntpq
>>that the poll interval in fact starts out at 3. If the client does
>>indeed start out at 3 and the server rate-limits it, use the restrict
>>default limited kod command to see if a KoD comes back.
> There are no configuration parsing errors: Both "minpoll 3" and
> "average 3" are accepted (while "minpoll 2" or "average nan" shout the
> expected error).
> By default sysstats shows no rate exceeded, with or without "average 3".
> Rate exceeded start to appear when adding restrict limited without
> "average 3".
> With restrict kod on the server, after some time the client logs "no
> servers reachable" and doesn't poll anymore (but the refid stays "DCF",
> no "RATE" or whatever). No problem with "average 3".
> The poll interval indeed starts at 3, and I see a pair of packets in and
> out on the wire every 8-10 seconds.
> Anyway the kernel clock was never disciplined, even with "average 3" and
> no limited/kod restrictions. Thanks Dave, I'll wait for the next
> snapshot and retry.
> Serge.

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