These are some notes from a talk by Aviatrix last week. Many customers get started with Aviatrix orchestration system for deploying AWS Transit Gateway (TGW) and Direct Connect. The transit gateway is the hub gateway that connects multiple VPCs with an on-premise link, possibly over Direct Connect. The Aviatrix product can then deploy and manage multiple VPCs and the communication between them, directing which VPC can talk to which other VPC. It controls the communication by simply deleting the routes.
The advanced transit controller solution is useful for multiple regions, to manage the communication between regions. Another aspect is there are high speed interconnects between the cloud providers and Aviatrix builds an overlay that bridges between public clouds. Multi-account communication and secure communication between the networks using segmentation can be enabled.
According to Aviatrix, AWS’s motto is go build, and do it yourself, it is designed for the builders. But when you go beyond 3 VPCs to 3000 VPCs, one needs a solution to manage the routes in an automated manner. This is the situation for many larger customers. For smaller ones where there are Production, Development and Edge/On-premise network components to manage it also finds use.
Remote user VPN is another use case. Not only can one VPN in and get to all the VPCs, but specify which CIDR they can get to and other restrictions.