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Forcing NTP Updates

Forcing NTP Updates

Ok, I've set the time/date on my 2620 router, I've set the Time Zone, I've set the 'summer-time' and I've set the 'ntp server'.

How do I force an update NOW and how do I set it up to update periodically, say, once a day?  Also is there a way to check when it last sync'd, etc.?



RE: Forcing NTP Updates

  Did you put the ntp client enable statement in your router ? You should not have to force an updaTE it will update itself within a couple of minutes  if it is working ok .  Do a show a ntp status and ntp associations to see what is going on .  

RE: Forcing NTP Updates

The 'sh ntp stat' and 'sh ntp ass' work fine but 'ntp client enable' appears to be a Catalyst command and is unavailable on my 2620's IOS (12.2(15)T8).

When in Config Mode the only options I have for ntp are:

As mentioned above I have only set 'ntp server <address>' so far.

Any ideas?


RE: Forcing NTP Updates

Are you sure that the NTP server that you are trying to sync with will accept your request?  (are you using a public server?)
 sho ntp assoc should show something like this
      address         ref clock     st  when  poll reach  delay  offset    disp
*~      .GPS.             1   362  1024  377   248.0  -115.5   114.9

list of time servers -


RE: Forcing NTP Updates

I am trying to sync to one of my own servers that is syncing with a strat 2 server.  It's a Windows 2000 Server that I have an AIX server syncing off of with no problems.

'show ntp assoc' displays this:

rivstrt2620#sh ntp ass
  address  ref clock st when  poll reach delay offset disp
~ 2  63 1024 377 34.4 -1644.   8.2
 * master (synced), # master (unsynced), + selected, - candidate, ~ configured

I've setup the server with "ntp server prefer" but I don't know if it's syncing.  How can I test it?  Is there a way to FORCE it to sync?  Are there any other commands I need to enter besides the one stated above?



RE: Forcing NTP Updates

It will not work.  The NTP server in Windows is very basic and will not work with routers.  You can try this:

I've never tried it but have heard that it works with network devices such as routers and switches.

RE: Forcing NTP Updates

I can run an NTP daemon on AIX and sync to that.  Do you think THAT would work?  Just ANOTHER case where Micro$oft proves their worth(lessness)...


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