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gbekmezi-DD
Contributor

DNA Center Brownfield Provisioning

DNAC fails on provisioning brownfield devices that have TACACS configured. What is the intended/recommended workflow for using DNAC to manage brownfield switches? Should TACACS/AAA commands be removed in order to provision? This becomes problematic when there are thousands of devices being managed.

 

Thanks!

6 REPLIES 6
Flavio Miranda
Advisor

What user you are using on the CLI credentials?  This user must have total privileges.

Preston Chilcote
Cisco Employee

If you remove the AAA settings from Design->Network Settings, then you will be able to complete the provision.  You then have 2 choices for the long term:

 

1) Manage your existing AAA settings via day-N templates. 

2) Use the provision workflow to convert your brownfield AAA configs to the configs that DNA wants to see.  That should enable you to re-enable AAA management via Design->Network settings going forward.

 

But you want to avoid having AAA configs in Design Settings AND in day-N templates at the same time.

Thanks for the reply and suggestions. How would you go about using the “provision workflow to convert your brownfield AAA configs to the configs that DNA wants to see?”

Is there a way to accomplish this without removing the relevant configurations from the network devices first?
 
Thanks!

You can provision a spare device to see the aaa configs that DNA deploys. 

Thanks for the reply and suggestions. How would you go about using the “provision workflow to convert your brownfield AAA configs to the configs that DNA wants to see?”

Is there a way to accomplish this without removing the relevant configurations from the network devices first?

Thanks!

Your template can first unconfigure aaa and the reconfigure it with the same commands DNA expects (in the same template).  Or just unconfigure aaa with a template and reapply AAA in Design Settings, but that takes 2 provisions instead of just 1.