SDA and ISE Question

[N3om]

Hi

Can someone please tell me 

a. how to add a PSN to Network settings in DNAC I dont see the PSN in the options we do have a primary PSN but want to add a secondary.

b.what Cert does ISE use to intergrate with DNAC e.g pxgrid nodes, psn nodes, pan nodes

Thanks

[benolyndav]

@andy!doesnt!like!uucp 
So does DNAC talk to directly to PxGrid nodes or is this done via the PAN.?

[andy!doesnt!like!uucp]

on session attributes topic DNAC talks directly to PxGrid node