On Wed, 2010-06-30 at 14:12 -0400, Rodney Dunn wrote: > I'm not a NTP expert but I know there were some issues when it went to > v4 regarding sync times, etc... > > One of them was: > > CSCte91471 NTP v4 takes several hours to sync when multiple servers > are configured > > From looking at the source code that fix doesn't appear to be in > 15.0(1)M2. > > You may want to try it with the next rebuild when it comes out.
That sounds just like it. I can see the 15.1(1)T also has the same bug, so I guess there's no point in trying that one. I've had an expect script run "show ntp status" every five minutes on the two devices the last 5-6 hours, and if I extrapolate linearly (R^2=0.76 though) the one running 15.0(1)M2 will be synchronized in around 11 hours, from an offset of ~15 ms now. The bug description says "... after few hours.", but this one will have taken nearly 36 hours if the linear extrapolation is correct. Tomorrow I will try to downgrade to 12.4(24)T3 to make sure it isn't hardware related. The one running 12.4(24)T3 now has the past 5 hours never exceeded 1 usec offset according to "show ntp status". -- Peter _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
