1

I would like to synchronize a Cisco Catalyst 2960 series switch with a publicly available NTP server such as time.apple.com. I have reviewed the knowledge base article here: Catalyst 2960 Configuration Guide but am not entirely sure which parts of the "Configuring NTP" subsection are relevant to my configuration.

  • How can I configure the Catalyst Switch to use an NTP server as its time source?
  • How can I confirm that the time is synchronized successfully with the NTP source?
sardean
  • 833
  • 3
  • 14
  • 34

1 Answers1

5

Example config:

shipping-2960# show run | i ntp

ntp server 207.182.243.123
ntp server 69.65.40.29 prefer
ntp server 208.53.158.34

To check status:

shipping-2960# show ntp status

Clock is synchronized, stratum 3, reference is 207.182.243.123
nominal freq is 190.7348 Hz, actual freq is 190.7286 Hz, precision is 2**18
reference time is D75F39BB.6F04B482 (21:08:59.433 CDT Wed Jul 2 2014)
clock offset is -6.8457 msec, root delay is 62.21 msec
root dispersion is 63.61 msec, peer dispersion is 14.11 msec
ewwhite
  • 194,921
  • 91
  • 434
  • 799
  • Thanks @ewwhite quick follow up. What command(s) do you use to set the NTP server? – sardean Jul 03 '14 at 02:44
  • @dean I strongly suspect that he uses the commands that he provided as examples above. – Skyhawk Jul 03 '14 at 04:55
  • The switch is not functioning as the NTP server but as a NTP client. He's asking about the NTP server. – Davidw Jul 03 '14 at 05:27
  • 2
    Also `show ntp association` is a brief output of each NTP server, it's statistics and master/secondary selection. – cpt_fink Jul 09 '14 at 05:53