WAN....it's not the internet!! (sometimes) // FREE CCNA // EP 8

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#ccna #ccna200301 #freeccna

[Slayvantz]

Seriously, man, you make learning networking interesting. Thank you so much.

[SmittyWerbs]

I am a Cyber Fundamentals instructor and I just want to give props to you! Teaching any portion of IT is hard and you do an amazing job of explaining concepts and never going too deep to confuse new learners. Huge fan and will definitely be watching more videos!

[andyhunter]

I like how excited you are about teaching others, on a career you enjoy. I will never forget watching a speech from Steve Jobs. When he said, " you will never work a day in your life if you enjoy what you do for a living". Thank you Chuck, for sharing your knowledge!

[wambamcamcam]

I love that you cover a lot of stuff that is taught in my class. You present it in a much easier way to understand and your videos have really been helping me out along the way. Taking my CCNA in a few weeks.

[Wars]

your seriously an Amazing teacher. Thats your real talent.

[brentreed]

It’s insane how much fun my students and I have watching your content. Doing a great job Chuck!

[siddvasq]

I discovered Chuck yesterday.. I don't know what to say! He's amazing.. Thank you for giving me the drive to pick up my Cisco Books once again.. Just thank you.

[horatiumarasescu]

Two things are sure:
One, the free CCNA course is getting even more exciting!
Two, Network Chuck's beard is growing even bigger!
Thanks for the content, NC, you rock!

[NetworkChuck]

**Sponsored by Boson Software

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[codywatts]

Your communication style of teaching is so incredibly helpful to me that I thought I would mention that to you. Thank you for putting out real quality content for people who are sincerely trying to learn and understand. I am sure a lot of work goes into these lessons, so thank you.

[PMPerformance]

From a first year admin who works at a 60+ site company with MPLS, and secondary internet lines, this helps fill in a lot of gaps on understanding why it was done the way it was done.
Thanks for the great video!

[MotivationInvest]

Exceptional Chuck, I learned these concepts years ago, but you make them click

[juanmanuelfallo]

I'm starting to learn networking and your videos are so practical, educational and easy to understand! A great extra source of information, thank you so much for the excellent content! Seeing you from Argentina, please keep up the good work ✌🏼

[ajjimenez]

Hey @NetworkChuck I can't thank you enough for your content. It's brilliant. Engaging, entertaining, and really breaks down these concepts in a way that I can actually digest them. I'm also a father of 3 (all girls!) making the jump to IT from the medical field, and I honestly wouldn't be able to do this without your videos. Thank you and bravo!

[nhbrid]

Please do not stop making these videos!!! You are a awesome teacher. The way you explain everything is very easy to understand. Thank you for making these videos.

[classless]

This is seriously high quality content. Love it.

[stón_]

Definitely my favourite channel on YouTube. Learning with you is fun and interesting, I soak in the information so much easier, thank you. Everyone needs to support this channel

[SpudsMgee]

Really enjoying your content. I first obtained my CCNA in 2016 and didn't use it for a few years. Now I'm working at a data center and looking to advance so I'm refreshing my knowledge on everything. Really appreciate the level of production that you put into your content.

[davidcterreri]

I've been in telecom for about 16years and you nailed the concepts in this video. Well done!

[rty]

I remember working for the nations largest bank and we needed communications for the ATM network around the globe. Leased lines wer mad expensive, so they launched thier own satellite! Problem solved. I worked on the ATM support services which monitored EVERYTHING an ATM can do. All rhe ATMs were in constant communication with my particular system. The ATMs were polled all the time like "are you there?" "Yes im still here. Alive and well" these polls happened at least 1x second. If the ATM failed to respond within that second, it was dropped to a slow poll list (1x every 5 seconds) depending on where the ATM was located if it wasnt heard from in a period of time, an alarm was generated, and a status MSG was sent to the NOC for investigation.
Some satellite delay times were 5-7 seconds and timeouts would have to be adjusted.
Without giving company secrets away, one key, is very tiny data packets. This made the ATM network one of the most reliable in the world. Oh we designed and built our own ATMs as well