[ntp:questions] very slow convergence of ntp to correct time.

David L. Mills mills at udel.edu
Tue Jan 29 00:26:43 UTC 2008


Not any more. Current NTPv4 sends the burst at 2-s intervals, mainly to 
coordinate with Autokey opportunities and reduce the total number of 


Hal Murray wrote:

>>I'll probably quite easily display my profound NTP ignorance here :)
>>But if there is assymetric delay stemming from an ARP resolution,
>>won't it affect all the packets in the burst?  Unless the tranmission
>>time of the burst getting out of NTP is >> the ARP resolution time,
>>the entire burst is going to be blocked waiting on the ARP resolution.
> The "burst" is sent at 1 second intervals.  There should be lots of
> time for all the switches and routers to get their act in gear.

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