Why iBGP ? | OSPF-BGP-MPLS From Scratch !!! | Concept Video-11

[@ramreddy-e1v]

I was searching like a mad person to understand the concept of iBGP, and this video just made it more clear than what i was expecting.

[@bridgewhy]

Thank you so much dear and I am glad that you liked the video !!!

[@aashishaggarwal7790]

Why do we need a full mesh? Where's the follow up video? Thanks

[@bridgewhy]

In iBGP, if a router learns a route from other iBGP router, it will not send it to other iBGP peer to avoid routing loop. Hence, we need full mesh. But full mesh will result in to many neighborship which is not feasible. That why we need Route Reflector or Confederations. If you want to go little deeper here is the complete course available on my website www.bridgewhy.com/courses/BGP-from-Scratch-65489f52e4b07165bdcdddaa

[@aashishaggarwal7790]

Ok, thanks :)

[@AkhilNikhil-l5z]

Crystal clear explanation. I just started working for Isp i was getting mad to understand the concept of IBGP this is really clear thanks for your work

[@bridgewhy]

Thank you so much dear !!!

[@BG-su1lv]

Thank you.

[@bridgewhy]

You are most welcome dear !!!

[@reeteshhurkhoo133]

Hello Sir, Thank you for the explanation. Suppose AS-300 is a company network. With thousands of routes transiting through AS-300, will it not overwhelm the internal routers. My point is we are not using an IGP protocol for redistribution as OSPF/EIGRP RIB does not provide support for huge number of Routes. Is this where we implement MPLS??? Grateful if you can confirm🙏. Thank you

[@bridgewhy]

Hi Reetesh !! There are many techniques in BGP through which you can avoid an AS to be a transit AS of different service providers. One such technique is route filtering. MPLS use-case is slightly different. I would suggest to watch my video on "Why behind MPLS". Here is the link, kzbin.info/www/bejne/m4a2dYZ8oJtlm9E