NTP on CME router

Unanswered Question
Jul 14th, 2010

hi All ,

i had configured NTP on my CME router it was working fine for last 3 months , but now suddendly its stopped working . there is 2 min difference b/w NTP and CME router timing  but date is OK . i have reconfigured but no luck . ping is working fine from both side .

BAC-CME#sh ntp status
Clock is unsynchronized, stratum 16, no reference clock
nominal freq is 250.0000 Hz, actual freq is 250.0000 Hz, precision is 2**24
reference time is CFDECB25.75CA24CE (09:45:09.460 UTC Wed Jul 7 2010)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 0.01 msec, peer dispersion is 0.00 msec
loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000000000 s/s
system poll interval is 64, last update was 881 sec ago

BAC-CME#sh ntp associations detail
127.127.1.1 configured, insane, invalid, stratum 7
ref ID .LOCL., time CFDECEA5.676FF387 (10:00:05.404 UTC Wed Jul 7 2010)
our mode active, peer mode passive, our poll intvl 16, peer poll intvl 16
root delay 0.00 msec, root disp 0.00, reach 7, sync dist 1.94
delay 0.00 msec, offset 0.0000 msec, dispersion 1937.62
precision 2**24, version 4
org time CFDECEA5.676FF387 (10:00:05.404 UTC Wed Jul 7 2010)
rec time CFDECEA5.6770BC01 (10:00:05.404 UTC Wed Jul 7 2010)
xmt time CFDECEA5.676F721A (10:00:05.404 UTC Wed Jul 7 2010)
filtdelay =     0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00
filtoffset =    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00
filterror =     0.00    0.00    0.00   16.00   16.00   16.00   16.00   16.00
minpoll = 4, maxpoll = 4

172.16.1.2 configured, insane, invalid, stratum 2
ref ID 64.90.182.55  , time CFE6B6AE.A74BFFB2 (09:55:58.653 UTC Tue Jul 13 2010)
our mode client, peer mode server, our poll intvl 64, peer poll intvl 64
root delay 0.21 msec, root disp 97.16, reach 3, sync dist 4.37
delay 0.00 msec, offset 518395311.1248 msec, dispersion 3949.45
precision 2**6, version 4
org time CFE6B78C.B72B3B17 (09:59:40.715 UTC Tue Jul 13 2010)
rec time CFDECE91.6799C7B9 (09:59:45.404 UTC Wed Jul 7 2010)
xmt time CFDECE91.6770EC1B (09:59:45.404 UTC Wed Jul 7 2010)
--More--                           filtdelay =     0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00
filtoffset = 518395. 518395.    0.00    0.00    0.00    0.00    0.00    0.00
filterror =     0.01    0.01   16.00   16.00   16.00   16.00   16.00   16.00
minpoll = 6, maxpoll = 10

please advise .

regards ,

Aslam

I have this problem too.
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Abhishek Sharma Wed, 07/14/2010 - 03:18

Verify that the correct NTP server is configured.

&

Verify that the correct time zone is configured.

aslam.bajwa Wed, 07/14/2010 - 03:48

yes , these both are correct , as mentioned that NTP was working befor on the same rouetr

regards,

ADAM CRISP Wed, 07/14/2010 - 10:48

Hi,

You have two NTP servers, one which is working, the other which is not working. (July 7 vs July 13)

Your router is showing 7th July - try setting the date correctly to bring it within 24hrs of the working NTP server - 172.16.1.2

I found this link: http://www.beaglesoft.com/clwaciscontp.htm which contains some useful information on the output of the show ntp commands

good luck

Adam

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