CCNA R&S version 3 Topics: BPDUGuard (A Spanning Tree Protocol (STP) Enhancement) 

You deserve far more subs than you have. It's quite rare to find a western Cisco content creator that can articulate Cisco's concepts in such a comprehensive manner.

One of the most gifted teachers, thank you!

Some people are just born to be excellent teachers...I think he is amazing!

Simply great. Short, to the point and explained in an easy, simple way. Kudos Kevin.!

I'm only at the beginning of network IT education, doing some by myself by means of books (Lammel) and videos on RU-vid. Just have found your great channel, thanks God there are good people like you, who providing others with knowledge, experience and engineer wisdom!

Hi Kevin I showed this video to my Netacad CCNA Semester 3 as a round up on Layer 2 topics. Its short and to the point. I am impressed how much you can cram into 5 minutes and still get the message across. Great video, thanks. Orla

thank you Mr Wallace. I've been watching you since last year, you are an amazing teacher.

Thanks for all your help. Bought the ICND2 v2 complete, and enjoyed its content. Taking test in a few weeks.

Great explanation Kevin...

THANKS FOR YOUR SIMPLE EXPLANATION SIR

Excelente material Kevin, gracias!

Thank you very much, I always enjoy your video, Amazing as usual

Well done sir!

Thanks for the video! :)

Thanks Teacher

thank you for of these videos

Need to know if complete video for CCNA v3 is ready?

thx