A flat network is one of the easiest networking designs and is aimed to reduce cost and overall administration.
In flat networks, all devices and workstations are connected to a single switch. This means that all devices are a part of the same broadcast network and will be able to communicate with each other.
The following diagram illustrates a simple flat network:
Having a flat network on the cloud means that all your servers (Dev, QA, staging, and production) are on the same network and can communicate with each other.
In an AWS environment, it can be generalized to have all the servers in a single VPC.
This ...
