Hello all,  I am starting a lab that I am configuring myself and right off the bat when I connect the ports at least one will not come on although it says it is on when I look at the switch. Any clue as to why it isn't coming up. I have not configure...

Good morning all,I've been following a video series that teaches VLANs, trunking, and subinterfaces. However, no matter how much I try to follow along I am not able to replicate the results of the video series. I've tried at least 5 times. My problem...