NTP not getting synchronised

Unanswered Question
Jan 24th, 2005

Hi these r the command outputs on switch 3560

SWITCH#show ntp associations

address ref clock st when poll reach delay offset disp

~x.x.35.254 0.0.0.0 16 31 64 0 0.0 0.00 16000.

* master (synced), # master (unsynced), + selected, - candidate, ~ configured

SWITCH#show ntp associations detail

x.x.35.254 configured, insane, invalid, unsynced, stratum 16

ref ID 0.0.0.0, time 00000000.00000000 (00:00:00.000 UTC Mon Jan 1 1900)

our mode client, peer mode unspec, our poll intvl 64, peer poll intvl 64

root delay 0.00 msec, root disp 0.00, reach 0, sync dist 0.000

delay 0.00 msec, offset 0.0000 msec, dispersion 16000.00

precision 2**5, version 3

org time C5A067F6.5497BE60 (06:38:46.330 UTC Tue Jan 25 2005)

rcv time C5A067C7.04F724D8 (06:37:59.019 UTC Tue Jan 25 2005)

xmt time C5A067C6.BF60B9B7 (06:37:58.747 UTC Tue Jan 25 2005)

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 = 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0

switch#show ntp status

Clock is unsynchronized, stratum 16, no reference clock

nominal freq is 119.2092 Hz, actual freq is 119.2092 Hz, precision is 2**17

reference time is 00000000.00000000 (00:00:00.000 UTC Mon Jan 1 1900)

clock offset is 0.0000 msec, root delay is 0.00 msec

root dispersion is 0.00 msec, peer dispersion is 0.00 msec

why dont i get the reference clock on show ntp association command?

I have this problem too.
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Martin Ermel Tue, 01/25/2005 - 01:37

keep in mind the following:

"NTP avoids synchronizing to a device whose time might not be accurate by never synchronizing to a device that is not synchronized. NTP also compares the time reported by several devices and does not synchronize to a device whose time is significantly different than the others, even if its stratum is lower."

Look at:

http://www.cisco.com/en/US/products/hw/switches/ps5528/products_configuration_guide_chapter09186a0080211321.html#wp1020799

HTH,

Martin

neonetsup Tue, 01/25/2005 - 05:20

Are there any problems with the NTP server the device is pointing to? Do other devices successfully sync to the same server?

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Posted January 24, 2005 at 10:42 PM
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