[ntp:questions] NTP request retry?

Rob nomail at example.com
Wed Jan 29 08:28:25 UTC 2014

detha <detha at foad.co.za> wrote:
> On Mon, 27 Jan 2014 21:45:22 +0000, Rob wrote:
> [...]
>> I can ping it as much as I like, no loss: 1571 packets transmitted, 1571
>> received, 0% packet loss, time 20468ms rtt min/avg/max/mdev =
>> 0.702/0.845/1.168/0.090 ms
>> But when ntpd is allowed to climb to 1024-second polls, it gets almost no
>> replies.
> Simple way to test if the problem could be ARP-related: set ntp for 1024
> poll, and keep a ping running. The ping will keep the ARP caches (and
> anything else in the path) fresh.

Yes, but that is not a test if the problem could be ARP-related.

It is apparent that the problem does not occur when the link is busy,
but I still don't know the cause.
It may also be some power-saving mechanism, for example.

More information about the questions mailing list