I'm running ACS v 5.1 and have noticed that it an autheication fails the log doesn't show the username it there is a failure with the authentication, but if the autheication is successful the username shows up.  Does anyone know how to make it so the...

Are there any recommendations on choose a native VLAN? Do you want it to be the VLAN with the most traffic on the switch or the VLAN from which you are going to manage the switch?