I have NEW switch using CatOS, CiscowWoks reported they are using Tacacs plus, not just Tacacs as IOS.I didn't know what the difference between the plus and the regular one. my main problem is I have a perl script collecting from all my Cisco Devices. unfortunately the script failed to access those switches running CatOS. I got error TACACS login failure.I am using a vlid credential and work on all other thousands of devices.any body have ever experiences the same problem? thank you in advance!!!