ISE Re-Integration with DNAC

[nalhafnawi]

Hey guys,

i have 2 ISE nodes with all personas, one is primary PAN and the other is secondary. When I did the integartion with DNA i forgot to but the second node Certificate to be trust by primary so DNA connot trust the secondary node.

my question is, if i removed the integration between ISE and DNA will the configration on ISE be removed ?

what is the best practice ? 

[Leo Laohoo]

https://www.youtube.com/watch?v=dKy9SYo0LvA

[Greg Gibbs]

The procedure would be similar to this example:
Reintegrate Cisco ISE with Cisco Catalyst Center 

Catalyst Center has no control over ISE Policy Set configuration. For Group Based Policy (TrustSec), Cat Center pushes configuration to ISE (Security Groups, SGACLs, TrustSec Policies) via REST API, but those configurations will not be deleted from ISE when ISE is removed from CatC. When reintegrated with ISE, CatC will pull that GBP config from ISE again.