ISE RODC working case

[Qingguo Zhang]

Hello experts

Customer would like to set up a new RODC to integrate with ISE in their DC ,  this is to minimize the impact for normal AD in production .  As per previous discussion and documentation on ISE ,  RODC works only primary DC (ISE joined) is failure and having some limitation ,  

https://community.cisco.com/t5/identity-services-engine-ise/cisco-ise-rodc/td-p/3450318

1. If ISE joined regular DC first  in a setup with RODC , then disconnect regular DC and ISE joined to RODC,  My testing on this is unsuccessful (still in troubleshooting) ,     what is detailed working scenario with RODC ?  

2. if RODC is not working with MS-CHAPv2 ,  then most popular 802.1x may not  be working , is it true ?

thanks

Qingguo

[Timothy Abbott]

In the community thread you mentioned, the RODC can only be used as a backup for the supported operations. If ISE does use a RODC in a site where ISE is joined to a regular DC, then it will be subject to those RODC limitations.

Regards,
Tim

[Qingguo Zhang]

Could you provide detailed steps or conditions for RODC testing?

What about 2nd question?