In this chapter, we learned that Neutron routers can route between directly connected tenant networks and external networks using network address translation. Neutron routers can be configured in a redundant or distributed manner, and they trade simplicity in their implementation for high availability. Like the virtual switching infrastructure covered in the previous chapter, users without access to the underlying infrastructure will be unable to observe how Neutron implements virtual routers and their respective features. The logical network diagram provided within the Horizon dashboard, coupled with an understanding of the concepts outlined in this book, will help you understand what is happening behind the scenes.
In the next chapter, we will take a look at some common virtual network architectures that can be built by users and will showcase the traffic flow from client workstations to virtual machine instances using floating IPs.