Device in Production C9410R, need to revert back to legacy mode

[Shwetha Singh]

Hi ISE Guru,

By accident,  on switch port level, I accidentally would have typed in command  'access-session host-mode multi-auth', and then I didn't really understand the warning about converting to C3PL format, so I hit 'enter' and saved them, but my authorisation is still failing. I am not very confident on newstyle config mode.

Now it looks like it's in newstyle format. Is that possible to revert back to legacy mode?  

Please help!!

[Damien Miller · Accepted solution]

You need to write erase the switch and reapply the original configuration. There is no other way to return back to IBNS 1.0. The alternative is to clean up and fix the IBNS 2.0 config. If you have a production impact please engage TAC for assistance.