Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

Dell Networking OS enables you to limit the number of concurrent login sessions of users on VTY, Aux, and console lines. You can also clear any of your existing sessions when you reach the maximum permitted number of concurrent sessions.

By default, you can use all 10 VTY lines, one console line, and one Aux line. You can limit the number of available sessions using the login concurrent-session limit command and so restrict users to that specific number of sessions. You can optionally configure the system to provide an option to the users to clear any of their existing sessions.