VMware Transit Connect and SDDC Grouping

Gilles Chekroun
Lead VMware Cloud on AWS Solutions Architect---First of all, I need to say that this is one of my longest post with a lot of new information and features around networking with AWS and SDDC together.With the  recent release of VMware Cloud on AWS ver 1.12, a major networking feature is now available and that is the VMware Managed Transit Gateway, also known as VMware Transit Connect. This post will go through a detailed description of what that feature is and the networking capabilities it opens. VMware Transit ConnectUntil now, the only way to connect an SDDC to a Transit Gateway was via VPN. Route based VPN is described in a previous post here and how to use PowerCLI for Route based VPN here.
By default, AWS creates 2 VPN tunnels and supports Equal Cost Multi-Path (ECMP). Adding more tunnels will certainly add more bandwidth. The VPN tunnels are terminated in the SDDC and a maximum of 4 tunnels is supported. The VMwar…

The Lonely VGW

Gilles Chekroun
Lead VMware Cloud on AWS Solutions Architect
Once upon a time in a remote country, there lived a VGW. 
He was lonely and not attached to anything. 
A few SDDCs were sad to see that lonely VGW and decided to establish route-based VPN to him to make some friendship. 
The lonely VGW was very happy to have new friends and decided to propagate all SDDC routes to everyone. 
SDDCs were even more happy because they learned everyone's routes via BGP and were able to communicate freely. 
SDDCs and VGW lived together very happily for ever after. BackgroundDuring my studies on VPN, I saw a very interesting site here that describes how a Virtual private Gateway can propagate BGP routes learned from attached Customer Gateways. I decided to do a quick test using VMware Cloud on AWS SDDCs as customer gateways and I was really surprised by the results. SetupVery straight forward as described in the picture below: 1 - Create a Virtual private Gateway 2 - Create VPN Connections Note the SDDC V…