Vna on SDN-Warrior | Daniel Krieger

VCF 9.1 - VNA After Dark: Scaling, Spans, and Architecture

Thu, 21 May 2026 22:00:00 +0200

Introduction

This article cost me a lot of sleep, long nights in the lab, and plenty of coffee. But let’s start from the beginning. I was fortunate enough to have a conversation with a very nice Broadcom employee (Oliver Ziltener) about the VNA. Thank you for your time, for your comments on my first article, and for answering my questions. That really helped me a lot.

If you’re not familiar with the VNA, please read that article first. So let’s not beat around the bush—let’s dive right into the rabbit hole.

VCF 9.1 - VNA and VPCs

Mon, 11 May 2026 00:00:00 +0200

Introduction

VMware has been cooking up something and has introduced another feature for VPCs and the Transit Gateway. The VNA, or Virtual Network Appliance. But what is it all about, and what can you do with it? Doesn’t this just add even more complexity to an already complex network setup with NSX? Well, as always, the answer is yes and no. What exactly you can do with the VNA, how it’s deployed, why it might make it easier to get started with VPCs and SDN, and what all of this means for people who want to use VKS—I’d like to get to the bottom of all that in today’s article.