[ntp:questions] ntp polling interval-- difference between NTP3 and 4?

Unruh unruh-spam at physics.ubc.ca
Mon Feb 18 18:12:31 UTC 2008

There seems to be a conflict between ntp 3 and ntp 4 in the handling of the
polling interval if the server does not respond. In the rfc for ntp 3 it
says that the polling interval decreases if the server does not respond,
while ntp 4 rfc  states 

A client SHOULD increase the poll interval ... if the server does not
respond within a reasonable time.

 The ntp3 RFC1305 states.

If valid data have been shifted into the filter register at least once
during the prceding two poll intervals,... the valid data counter is
incremented. .... Otherwise the valid data counter and poll interval are
both decremented.

which seems to indicate that if the server cannot be reached, the poll
interval is decreased. 

Is this a conflict or am I misreading the two standards?

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