Anybody else notice that ntp1.linx.net is jittery but ntp2.linx.net is
stable as a rock?
$ ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
...
+ntp1.linx.net .PPS. 1 u 174 1024 377 4.677 0.289 36.181
*ntp2.linx.net .GPS. 1 u 501 1024 377 5.631 0.006 0.253
This is despite the fact that the path to ntp2 appears to go through a
bunch more hops, and some FastEthernet interfaces.
I'm not a LINX member so don't have an official way to report this, but
maybe someone here will pick it up?
Regards,
Brian Candler.
$ sudo traceroute -I ntp1.linx.net
traceroute to ntp1.linx.net (195.66.241.3), 30 hops max, 60 byte packets
...
3 ae-125-3511.edge5.london1.Level3.net (4.69.166.41) 4.415 ms 4.425
ms 4.424 ms
4 ae-125-3511.edge5.london1.Level3.net (4.69.166.41) 4.423 ms 4.422
ms 4.434 ms
5 DAISY-GROUP.edge5.London1.Level3.net (212.187.138.166) 4.878 ms
4.896 ms 4.975 ms
6 te0-2-0.ar06.tn5.bb.daisyplc.net (62.72.137.182) 4.935 ms 4.927
ms 4.898 ms
7 te0-2-0.ar06.tn5.bb.daisyplc.net (62.72.137.182) 4.588 ms 4.617
ms 4.593 ms
8 ge0-3.tr5.linx.net (195.66.248.33) 4.686 ms 4.882 ms 4.885 ms
9 ntp1.linx.net (195.66.241.3) 4.873 ms 4.856 ms 4.844 ms
$ sudo traceroute -I ntp2.linx.net
traceroute to ntp2.linx.net (195.66.241.10), 30 hops max, 60 byte packets
...
3 ae-125-3511.edge5.london1.Level3.net (4.69.166.41) 4.436 ms 4.448
ms 4.447 ms
4 ae-125-3511.edge5.london1.Level3.net (4.69.166.41) 4.443 ms 4.440
ms 4.452 ms
5 DAISY-GROUP.edge5.London1.Level3.net (212.187.138.166) 4.876 ms
4.900 ms 5.096 ms
6 te0-2-0.ar06.tn5.bb.daisyplc.net (62.72.137.182) 4.877 ms 4.803
ms 4.751 ms
7 te0-2-0.ar06.tn5.bb.daisyplc.net (62.72.137.182) 4.553 ms 4.606
ms 4.607 ms
8 ge0-3.tr5.linx.net (195.66.248.33) 4.630 ms 4.648 ms 4.729 ms
9 fe2-1-502.tr2.linx.net (195.66.249.9) 4.680 ms 4.642 ms 4.635 ms
10 fe6-1.tr1.linx.net (195.66.248.57) 4.981 ms 5.086 ms 5.099 ms
11 ge0-3-101.tr6.linx.net (195.66.248.13) 5.444 ms 5.274 ms 5.124 ms
12 fe6-0.tr3.linx.net (195.66.248.180) 5.332 ms 5.272 ms 5.363 ms
13 ntp2.linx.net (195.66.241.10) 5.449 ms 5.448 ms 5.466 ms
