Multi-region design with Azure Route Server without an overlay

Some time ago I posted a blog commenting on a possible design for interconnecting multiple Azure regions by means of Network Virtual Appliances (NVAs) and the Azure Route Server (ARS), where I used an overlay tunnel between the NVAs with VXLAN as encap protocol. I have received multiple questions to whether it would be possible … Continue reading Multi-region design with Azure Route Server without an overlay

Route Server Multi-Region Design

In my previous blog I wrote my view on the characteristics of the new Azure Route Server that I am most excited about. In this one I would like to give you a glimpse of how it works with a design that I see in many organizations: a multi-region setup, with Network Virtual Appliances acting … Continue reading Route Server Multi-Region Design

A day in the life of a packet in Azure Redhat Openshift (part 2)

In this part 2 of my blog series around ARO networking we will have a look and how inbound and outbound Internet connectivity works, as well as connectivity between different pods in the cluster. Other posts in the series: Part 1: Intro and SDN Plugin Part 2: Internet and Intra-cluster Communication Part 3: Inter-Project and … Continue reading A day in the life of a packet in Azure Redhat Openshift (part 2)

Best Kept Secret in the SDN Industry: HNV

If you are wondering what HNV stands for, you are exactly right in this blog. HNV, or Hyper-V Network Virtualization is how Microsoft used to call their virtual networking stack in Windows Server. Nowadays it is usually referred to as Windows Server SDN, or more accurately Windows Server SDN v2 (“v2” meaning the newer implementation … Continue reading Best Kept Secret in the SDN Industry: HNV

Was network management ever so cool?

Admittedly, I am sick. That is at least what most people would say, if I told them that last night I was having fun programming in Python in order to automate a VXLAN environment using an EVPN control plane. Whaaaat??? In my opinion, VXLAN fabrics with EVPN are really cool. Lots of benefits over traditional … Continue reading Was network management ever so cool?