> My questions for the list are, (1) does this match others' experience?
Certainly. The ntp_stats scripts classify them as abusive clients, see, for example http://tb0.asg-platform.org/ntpstats/ntp_stats.txt As you can see, I have 33 abusive clients at the moment (at least if you check *right* now). The cumulative most abusive clients accounts for 4.86% of my ntp traffic, and sends a request every 15s. The fastest client currently sends a request every 4s, but it has doing that (to me) only for a few hours so far. Another client pulls every 5.2s, and another one every 7.8s. > and (2) what's the list's opinion on whether this is a reasonable thing > to do on a pool server, and, if so, on my choice of trip point? If you can afford the traffic, let them do that. Most likely, nobody is really maintaining these clients, and some programmer thought that it was a good idea query for the time every 7200 (not being aware that the respective unit was ms, not s). As a collective experiment, we could try to start chasing down abusive equipment, contact the vendors of such equipment, and ask them to fix their boxes (preferably using a real NTP client). Just my 0,02€, Martin _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
