
To look at the terminal configurations of individual lines, use the show line command (even if you aren't connected to that line). Here's an example: Router# show line summaryĠ: ?u?ģ6: ?-?- ?- ?-?-?U- ?Ģ total lines in use, 1 not authenticated (lowercase) Use the show line summary command to get a cool summary. Line(s) not in async mode -or- with no hardware support:Īs you can see from the example, the router has one console line (labeled CTY), one AUX port (labeled AUX), five VTY lines, and 32 TTY lines.

Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int To see which lines you have on your router, use the show line command.

"Lines" on Cisco routers are physical async serial ports on the router (such as a terminal or modem), a virtual network connection, or another type of serial line on the router. What are the different types of lines on Cisco routers? What are these lines, and how do you configure them? These are things that every network admin should know. All Cisco routers have two special types of lines, and many Cisco routers have a third.
