ISE Deployment - Your Feedback

Hi,
 I am currently evaluating two NAC systems: ISE and Bradford and I wanted to see if anyone has had the opportunity to see both systems. Although we are a Cisco shop, I am looking for simplicity due to staff shortage. 
 In the event I decide to go with ISE, I would like to hear your personal challenges with the product during the deployment phase and those little things I need to keep in mind to avoid future headaches. 
  Thanks in advance !

Hello,
I have one done (not finished) one deployment with 150 clients. And one guy I know is doing a very large scale deployment.
To me it's very interesting but very challenging. I really under estimated the time it would take. I did this project because my client wanted it. From a technical point of view it's very positive for me, from a financial point of view it's really bad as I've spent a lot of time.
The client is so far very happy although some implemented features are missing.
I would recommend to start with Wifi only and once you understand ISE and know how to troubleshoot make Wire to work. I have not tried remote access though.
Some hints:
- You're full Cisco or you have other vendors (I'm thinking about IP Phones but the question can also be asked for switches and wlc)
- You have a PKI or not.
- You have devices (endpoints) and they are not 802.1X capable. All of us have, but the important is to list them.
It's also difficult because it involves a lot of components and protocols:
- Components: The radius server (ISE), the NAS (Switch or WLC), the endpoints (PC, APs, printers), the host (in my case VMWare)
- Protocols: EAP protocols, Snmp/DHCP for profiling, Wifi etc.
So I wouldn't see a guy with a little experience in networking dealing with something like this. I was more than familiar with many of these things. And before ISE I also tried Freeradius and made is work with Wifi and Vlan assignement and a LDAP server.
If by chance I make the whole thing to work I need to give the skills to someone else to do a troubleshooting.
So this is my experience so far. Some other have much more experience of course.

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