[ntp:questions] ntp-4.2.6p5
Steve Clark
sclark at netwolves.com
Fri Aug 22 18:09:38 UTC 2014
Hello,
We are running the above release. It works great until the interface for the default route is
brought down and then back up. Then after a half hour or so it ntpstat starts returning
synchronised to unspecified at stratum 4
time correct to within 1149 ms
polling server every 64 s
$ ntpdc -c dmpeers
remote local st poll reach delay offset disp
=======================================================================
ccadmin.cycores 0.0.0.0 2 64 0 0.03999 0.004545 3.99217
va-time.techpro 0.0.0.0 2 64 0 0.05200 0.004608 3.99217
time.tritn.com 0.0.0.0 2 64 0 0.07124 -0.004152 3.99217
167.88.119.29 0.0.0.0 3 64 0 0.03712 -0.002695 3.99217
Fri Aug 22 09:06:30 EDT 2014
Z3179:~
$ ntpq -c assoc -c pe -c rv -n
ind assid status conf reach auth condition last_event cnt
===========================================================
1 31380 8043 yes no none reject unreachable 4
2 31381 8033 yes no none reject unreachable 3
3 31382 8033 yes no none reject unreachable 3
4 31383 8043 yes no none reject unreachable 4
remote refid st t when poll reach delay offset
jitter
==============================================================================
216.66.0.142 130.207.244.240 2 - 765 64 0 39.999 4.545 0.000
208.87.104.40 129.6.15.28 2 - 765 64 0 52.017 4.608 0.000
208.75.89.4 69.36.224.15 2 - 766 64 0 71.249 -4.152
0.000
167.88.119.29 108.61.73.243 3 - 765 64 0 37.125 -2.695
0.000
associd=0 status=0018 leap_none, sync_unspec, 1 event, no_sys_peer,
version="ntpd4.2.6p5 at 1.2349-o Sat Nov 23 18:21:48 UTC 2013 (1)",
processor="x86_64",
system="Linux/2.6.32-358.23.2.el6.centos.plus.x86_64", leap=00,
stratum=4, precision=-20, rootdelay=54.747, rootdisp=1041.600,
refid=167.88.119.29,
reftime=d7a1bbf6.5ad81565 Fri, Aug 22 2014 8:54:14.354,
clock=d7a1bef3.d7a186a6 Fri, Aug 22 2014 9:06:59.842, peer=0, tc=6,
mintc=3, offset=-7.321, frequency=-0.287, sys_jitter=0.000,
clk_jitter=1.978, clk_wander=0.588
Fri Aug 22 09:06:59 EDT 2014
Z3179:~
$ ntpq -c assoc -c pe -c rv -n
ind assid status conf reach auth condition last_event cnt
===========================================================
1 31380 8043 yes no none reject unreachable 4
2 31381 8033 yes no none reject unreachable 3
3 31382 8033 yes no none reject unreachable 3
4 31383 8043 yes no none reject unreachable 4
remote refid st t when poll reach delay offset
jitter
==============================================================================
216.66.0.142 130.207.244.240 2 - 927 64 0 39.999 4.545 0.000
208.87.104.40 129.6.15.28 2 - 927 64 0 52.017 4.608 0.000
208.75.89.4 69.36.224.15 2 - 928 64 0 71.249 -4.152
0.000
167.88.119.29 108.61.73.243 3 - 927 64 0 37.125 -2.695
0.000
associd=0 status=0018 leap_none, sync_unspec, 1 event, no_sys_peer,
version="ntpd4.2.6p5 at 1.2349-o Sat Nov 23 18:21:48 UTC 2013 (1)",
processor="x86_64",
system="Linux/2.6.32-358.23.2.el6.centos.plus.x86_64", leap=00,
stratum=4, precision=-20, rootdelay=54.747, rootdisp=1044.030,
refid=167.88.119.29,
reftime=d7a1bbf6.5ad81565 Fri, Aug 22 2014 8:54:14.354,
clock=d7a1bf95.b93c7be6 Fri, Aug 22 2014 9:09:41.723, peer=0, tc=6,
mintc=3, offset=-7.321, frequency=-0.287, sys_jitter=0.000,
clk_jitter=1.978, clk_wander=0.588
Fri Aug 22 09:09:41 EDT 2014
*If I restart ntpd then it starts reporting*
synchronised to NTP server (97.107.134.213) at stratum 3
time correct to within 95 ms
polling server every 512 s
$ ntpdc -c dmpeers
remote local st poll reach delay offset disp
=======================================================================
.bindcat.fhsu.ed 10.0.133.177 2 256 377 0.05055 -0.001466 0.11301
*framboise.hoopy 10.0.133.177 2 512 377 0.04184 -0.001822 0.11789
.quake.intrstar. 10.0.133.177 2 256 377 0.03975 0.000671 0.09483
.pacific.latt.ne 10.0.133.177 2 256 377 0.07555 0.001798 0.11441
Fri Aug 22 14:06:17 EDT 2014
Z3179:~
$ ntpq -c assoc -c pe -c rv -n
ind assid status conf reach auth condition last_event cnt
===========================================================
1 11072 943a yes yes none candidate sys_peer 3
2 11073 941a yes yes none candidate sys_peer 1
3 11074 9424 yes yes none candidate reachable 2
4 11075 961a yes yes none sys.peer sys_peer 1
remote refid st t when poll reach delay offset jitter
==============================================================================
+209.114.111.1 132.163.4.103 2 u 96 256 377 50.553 -1.466 5.288
+204.2.134.163 241.199.164.101 2 u 252 256 377 75.555 1.798 2.385
+66.207.226.14 129.6.15.28 2 u 99 256 377 39.752 0.671 5.609
*97.107.134.213 128.4.1.1 2 u 83 512 377 41.848 -1.822 2.598
associd=0 status=0615 leap_none, sync_ntp, 1 event, clock_sync,
version="ntpd 4.2.6p5 at 1.2349-o Sat Nov 23 18:21:48 UTC 2013 (1)",
processor="x86_64",
system="Linux/2.6.32-358.23.2.el6.centos.plus.x86_64", leap=00,
stratum=3, precision=-20, rootdelay=47.601, rootdisp=75.887,
refid=97.107.134.213,
reftime=d7a203bf.e7ee6ffe Fri, Aug 22 2014 14:00:31.905,
clock=d7a2051c.9cdeed42 Fri, Aug 22 2014 14:06:20.612, peer=11075, tc=9,
mintc=3, offset=-0.221, frequency=3.138, sys_jitter=3.165,
clk_jitter=5.837, clk_wander=1.456
Is there a fix for this short of restarting ntpd?
Thanks,
--
Stephen Clark
*NetWolves Managed Services, LLC.*
Director of Technology
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.clark at netwolves.com
http://www.netwolves.com
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