MicroNugget: What is BGP and BGP Configuration Explained | CBT Nuggets

In this video, CBT Nuggets trainer Jeremy Cioara covers Border Gateway Protocol. Find out what BGP is, what it's used for, how it works, and why autonomous systems make the routing decisions they do with this MicroNugget tutorial.

BGP is the routing protocol of the Internet. It finds all the routes that the Internet has, and carries them around the world.

BGP is oriented and aimed primarily at service providers and enterprise customers, not individual households or small users.

The small commercial routers you’d find in a home don’t hold a candle to the routers that service providers have. At that level, BGP allows service providers to peek into their neighbors’ routing tables and learn where to send traffic its users have sent to it.

BGP doesn’t have the time to deal with individual routers, it looks at autonomous systems – many of which might contain hundreds of routers.

BGP runs through a list to decide how to route: it checks the weight of routes, local preference values, local routes, shortest autonomous system path, and more.

BGP is the slowest routing protocol around. A registered domain name can take days to populate, and news that a server has gone down can take a long time to spread to every corner of the Internet.

0:05: Overview
0:25: How internet service providers use BGP
1:25: BGP manages trust and untrust
2:40: BGP routes through autonomous systems, not routers
3:45: BGP's path determination survey
4:45: The factors that get considered in BGP routing
5:05: BGP is the slowest routing protocol in the world
6:10: Google "BGP Looking Glass" for insight

Start learning with CBT Nuggets:

[jlf_]

I’m here because of facebook/whatsapp being down and I actually understand it now :)

[honeypot]

if all my professors were teaching like this i would actually find learning fun, thanks for the video!

[xaop]

Hi Jeremy. I started my Cisco Journey in 2008. Thanks to your training (materials with CBT Nuggets), I am a CCIE (with a number) and I work in multivendor (Juniper, Cisco, Arista, etc) environment. You played an essential part in the beginning of my journey in helping me understand foundations and help me become a good Network Engineer. More I learn, more I realize how less I know. I hope to meet you some day. Food and Drinks on me :) Thank you for your awesome work.

[enclaveblacklegion]

me looks at my home router : "He says you are not real router"
my router : "hold my pakets"

[cawaboonga]

This Jeremy guy is the bomb, it's just so amusing to hear, it's clear, hyped you can tell he just deeply loves this stuff...

[itshamiiid]

hands down Jeremy is the best IT teacher i have ever known. back in 20111 when i was studying to get my CCNA certification, i would watch his cbtnuggets series and man, i can say he's just a wonderful teacher. I wish there were more teachers like him. becasue his enthusiasm about the subjects he's teaches is just contagious and makes you want to learn. Godbless.

[sandveldoff-campdrifters]

JEREMY HAS HELPED ME A LOT DURING MY CCNA R&S AND CCNP R&S DAYS, NOW PREPARING FOR CCIE R&S IN DUBAI, BELGIUM OR INDIA AFTER THE PANDEMIC!!

[jolibird]

I know him because I watched his other tutorials for Cisco certification. He is so talented in teaching. very fun to learn from while being very informative. Indeed impressive

[cbtnuggets]

Happy Monday Nugget Fans! Check out Jeremy's newest MicroNugget about the Border Gateway Protocol:

[ardentdfender]

Yeah here because of Facebook/Instagram/WhatsApp outage yesterday and trying to understand BGP issues with what happened. Jeremy teaches things in a fun understandable way and also because I’ve actually used CBT Nuggets.

[ipubrich]

Slightly unrelated to this specific video but I really appreciate the clarity of the presentations Jeremy provides. He talks with such pace and passion that sometimes you get whisked along (wanting to pet a dog?!) but overall he helps me find the joy in learning and ultimately I put put on the table because of guys like this. Thanks.

[tryingadult]

I don't think I've ever watched a YT video with this genuine excitement.

[tysmith]

I love Jeremy's videos..yes hes slightly hyper...as am I but he makes sometimes dull material fun with his jokes and metaphors. He also presents it in a way that is easy to understand. Keep it up Jeremy!

[love-hammer]

Jeremy is my Bill Nye of networking. His enthusiasm makes me excited to learn.

[plasticmank]

That energy is awesome! You make networking sound fun lol

[TechMaster]

Jeremy you have made learning really fun for me, all the way from my CCNA, now studying towards my CCIE. It has always been you helping me pass all my exams, i mean if one can't get it being explained by you, it means they will probably never gon get it. I hope to meet you 1 day. Shout out all the way from South Africa. May you leave long bro

[sairam]

I love his teaching speed. I have seen other videos they are making me sleep. Thank you CBT

[PrashantSharma-qlyb]

Wow... wish I had teachers with same level of excitement and energy in my high school.
PS: Loved the energy.

[issacccom]

I appreciate your enthusiasm in explaining the concept. Thank you!

[jarheadkev]

Thank You Jeremy. Very informative. As I go through my network studies, I always seem to go back to CBT Nuggets for that light bulb going off in your head moment.