Video: Routing over VXLAN
Even though I wrote about the challenges of routing from VXLAN VNI to VLAN segment on a certain popular chipset a while ago, many engineers obviously still find the topic highly confusing (no surprise there, it is).
Maybe a video is worth a thousand words ;) – I published the part of recent VXLAN webinar where I described the issue in as many details as I could.
Any thought or future posts considering the following:
Geneve
https://tools.ietf.org/html/draft-gross-geneve-00
http://blogs.vmware.com/cto/geneve-vxlan-network-virtualization-encapsulation
And utilizing any of the options of an Intel XL710 10/40 gigabit Ethernet chipset?
Regards..
I have no opinion on Geneve (the encapsulation), apart from "why do we need yet another encapsulation?" Once I see a real-life use case I might start forming one.
Kind regards...
The problem referred in the video is because of routing done at dest VTEP. If the solution is architect-ed such a way that routing is done at source VTEP and bridging at dest VTEP then we may not hit the problem at all. We may have to deal with different problem (ARP scaling).
And yeah, ARP scaling will eventually kill you if you use distributed routing approach in large deployments.