Two NADs are focused on here: Cisco switches and Cisco wireless LAN controllers. Each is quite different in how authentications are verified and will therefore be discussed in two separate sections.
Many items can be tested with a Cisco switch, with many tools being provided in Cisco IOS. The ones used most often are described in this section.
show AAA servers Command
One of the first things to check with a Cisco switch is the status of the RADIUS server (ISE). The show aaa servers command is a quick and simple way to see the current status of the ISE server from the switch’s perspective. Example 12-1 shows the use of this command and its output. The main item ...