Waqas, I would bet if you widen the display or your terminal session this will stop. We use putty.exe for all cli and ssh access and on the Extreme XOS display has to be stretched or it does not parse the lines correctly. You will see the cursor moving up and down the line due to the screen is being refreshed every one or two seconds so you get real time status of the ports. Also only 15 or so ports will display at a time so as other stated you have to use U or D to look at remaining ports
