VXLAN | Explained & Configuration! 

Thanks so much, Adam! Really appreciate it :)

Thanks Ashif! Have been very busy recently - will hopefully get MPBGP VXLAN done soon :)

Thanks, Anar! Great to hear your feedback :) -John

Thanks, Alex!! :)

Hey, Antonio! Thanks so much, I really appreciate your feedback! Re: your question! VPLS is a layer 2 technology at heart ie with VPLS you wont get the ECMP, Arp Suppression, etc which is a huge benefit of VXLAN...whilst still providing the ability to offer L2 adjacency of course. What I think you want to be looking into would be MP-BGP VXLAN EVPN - that's the other (more complex but vastly more scalable) implementation of VXLAN. It doesn't rely on data plan learning so there's no need for large flooding between sites. Scales easily across ASs. I'll be doing a video on that soon too though :) In the meantime, I'd recommend this video as a good intro if you're interested in the technology! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-O8wU1qNlsyI.html Thanks again, man! -John

Hey, Ash! Thanks a lot! :) The network software I'm using is called EVE-NG. I'm using the free Community edition which you can download for free here: www.eve-ng.net/ The illustrations are just using Windows "Snip & Sketch" with a drawing tablet. Hope that helps! -John

Hey Catharsis! Thanks so much. Glad you found it helpful :) -John

Thanks, NirodRanjan! Great to hear your feedback!!

Hey, M Haroon! Thanks for leaving your feedback. Great to get your thoughts! Yeah, I've got a backlog of videos I've got planned and BGP EVPN VXLAN is definitely one of them! :) -John

@@IPvZero Also looking for this one! Thanks for this video though. Really helpful.

you could utilise encryption on your dynamic routing protocol(e.g OSPF authentication with HMAC-SHA integrity, OSPF TTL security checks to prevent remote attacks etc)

Hey, Julio! I actually can't remember the one I was using in that video since ive since remade my EVE-NG and readded all my images. But the Arista image I'm using now is: vEOS64-lab-4.23.2F + Aboot-veos-serial-8.0.0 Both available for free from the Arista website if you sign up! To setup I simply followed the EVE-NG website, with of course changing the name of the image to the ones I'm using. After that your VXLAN should work no problem (hopefully!) Give it a try and don't hesitate to message me back if you run into any more problems :) -John

@@IPvZero thank you for the quick response. I was able to get 4.22.4M running. I'll have to try 4.23 later today and see if I fat fingered something. Thank you!

Vxlan supports 24 million distinct vlans, so that is an advantage

 if they are still mapped to the same 4094 vlans whats the advantage there?

@@johnmoff9324 no, the vxlan header has an entirely separate 24 bit field. You don’t need to map vxlans to vlans if the traffic never leaves the vxlan, which it should not.

Fantastic material John. I watched you ages ago with your Nornir stuff. You using this much? Anything new on the horizon? I’m finding the new workplace mind-blowing, networking has change a mile in two years and knowing protocols and how systems really communicate is so important. I work for a cloud provider and have done so much Linux networking some of my Cisco and Juniper knowledge has dropped. The JUNOS and iOS has changed loads. Anyhow, it’s like we need to be a technologists these days rather than a specialist like in the past.