What Is A Terminal Server Router And Why Do I Want One? A very nice to have is a 2509 or 2511 access/terminal server router. This way you do not have to keep moving the console cable from router to router as you are configuring them. You can access all your routers and switches via the terminal server and connected octal cable. This is not going to function in your lab, but it is nice to have to make your lab much easier to use.