ANNOUNCEMENT - The community will be down for maintenace this Thursday August 13 from 12:00 AM PT to 02:00 AM PT. As a precaution save your work.
cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

This community is for technical, feature, configuration and deployment questions.
For production deployment issues, please contact the TAC!

  • Register for the monthly Cisco DNA Center Ask the Expert Sessions to learn about Cisco DNA Center configuration and deployment.
  • 339
    Views
    10
    Helpful
    5
    Replies
    Highlighted
    Beginner

    DNA server change NTP servers and/or timezone

    Hi community, does anyone know of a maglev/CLI command to change the NTP time servers and/or timezone on the DNA servers themselves? Our cluster's time's out according to the "date" command which is causing time drift errors in assurance.

    I know running through the maglev config-update wizard again is one approach but we've had issues getting a stable cluster deployed so wondered if there was a more straight forward option via webgui or cli? (I can't find anything online)

    1 ACCEPTED SOLUTION

    Accepted Solutions
    Highlighted
    Participant

    Re: DNA server change NTP servers and/or timezone

    Hi,

     

    From my understanding, DNA Center's base time operates using UTC only and cannot be changed. However, the DNA Center web UI should automatically update the display time to match that of your browser/workstation. If you check under the Assurance tab, does the timestamp at the top right of the UI match UTC or BST?

     

    Also the timezone that you set under Design -> Network Settings -> Network -> Site is used for scheduling the provisioning and updating of devices. For example, when you attempt to provision a device that is associated to a site using the Europe/London timezone and select to provision Later, you will be presented with the following:

     

    DNAC Schedule.PNG

     

    The default selected time should be pulled from your browser/workstation (that you can then modify) with the timezone pulled from site settings (although it doesn't clearly display the timezone under this window)

     

    Can you check this on your appliance?

     

    Hope that this helps

    Will

    View solution in original post

    5 REPLIES 5
    Highlighted
    VIP Collaborator

    Re: DNA server change NTP servers and/or timezone

    AFAIK you must make this type of change via the maglev wizard. The maglev config wizard allows you to make changes below the application/GUI level. Lastly, this type of change will not affect system services. However, once the changes are made via the wizard it restarts the DNAC interfaces. HTH!

     

    Edited to include experience from earlier today:  Literally just changed NTP server configuration for all three nodes in a DNAC cluster running 1.3.3.5 about two hours ago.  Use ssh to run a sudo maglev-config update on each node, then via the wizard proceed through until you get to NTP server settings, modify and proceed, and you will be good to go.  No downtime, no service interruption, no issues.  Cheers!

    Highlighted
    Beginner

    Re: DNA server change NTP servers and/or timezone

    Thanks for your advice, I changed the NTP servers successfully however the timezone of the DNAC server itself is still out as its set to UTC (I'm in BST as are all of my switches).

     

    Does the timezone come from the NTP server itself or can you set it somewhere else (appreciate you can set it under the design tab but thats just to reflect remote site differences)

     

    I'd like to have my DNAC appliance use the BST timezone for scheduling and assurance purposes.

     

    Thanks again

    Highlighted
    Participant

    Re: DNA server change NTP servers and/or timezone

    Hi,

     

    From my understanding, DNA Center's base time operates using UTC only and cannot be changed. However, the DNA Center web UI should automatically update the display time to match that of your browser/workstation. If you check under the Assurance tab, does the timestamp at the top right of the UI match UTC or BST?

     

    Also the timezone that you set under Design -> Network Settings -> Network -> Site is used for scheduling the provisioning and updating of devices. For example, when you attempt to provision a device that is associated to a site using the Europe/London timezone and select to provision Later, you will be presented with the following:

     

    DNAC Schedule.PNG

     

    The default selected time should be pulled from your browser/workstation (that you can then modify) with the timezone pulled from site settings (although it doesn't clearly display the timezone under this window)

     

    Can you check this on your appliance?

     

    Hope that this helps

    Will

    View solution in original post

    Highlighted
    Beginner

    Re: DNA server change NTP servers and/or timezone

    Thanks for your help - that clears it up.
    Highlighted
    Participant

    Re: DNA server change NTP servers and/or timezone

    No problem. Also just to note that there is a known DNAC bug that causes assurance to report that device time has drifted. Bug details below. I hit this same issue which I suspect was due to an unsupported timezone on the network devices which I removed to fix the problem. I've not had any issues with a timezone of GMT/BST so far though. This was with DNAC 1.3.1.4 but should be fixed in newer versions I believe.

     

    https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr46035/?rfs=iqvred

    Content for Community-Ad
    This widget could not be displayed.