Azure Hub-spoke Network Topology

Today I have some time to learn about hub-spoke network topology in Azure.

I previously did some reading up on Azure architecture — you can see my article on that here so I am aware of the basics. I’ve also done a bit of reading on network traffic routing — in case my article helps with your understanding, it can be found here.

Most of the info for this article was found from the Microsoft docs here.

Networking and architecture

So far I’ve seen that a virtual network is required to connect your Azure services together, with the Internet and with on-premise resources.

Once you have your virtual network set up, default routing will allow network traffic to flow with the Internet and between resources but if you want to add special rules then you can create your own custom routes.

The network architecture is the next thing to think about. There are different models for setting up your network that Azure recommend for different reasons. Today I will look at the hub-spoke model.

What is hub-spoke?

My understanding of hub-spoke is that there’s a central thing in the middle and then other bits that come from that in a circle around it.