> I grabbed a set if IP#'s from pool.ntp.org and monitored them in the 24 > hours before and 8 hours after the leap.
I did something similar using the public NTP server lists on the ntp wiki. I'm still collecting the data, but I have some plots of what's happening with the leap bits at: http://www.maths.tcd.ie/~dwmalone/time/leap2005.html It wasn't really until 24 hours before that a significant number of servers were advertising the leap, peaking in the last measurement before the leap. Interestingly, one server actually advertised a leap in the wrong direction! After the leap it looks like more stratum 1 servers were unsynchronised than usual, though that seems to have setteled down a bit now. The number of people with the leap bits set is dropping, but isn't quite zero yet. I have the peers information from out local ntp server around the leap. Our server did the right thing, but it looks like there were a number of others that didn't. I haven't figured out how to visualise that yet. David.