In this chapter, we discovered how Neutron leverages Linux bridges and virtual interfaces to provide network connectivity to instances. The Linux bridge driver supports many different network types, including tagged, untagged, and overlay networks, and I will demonstrate in later chapters how these differ when we launch instances on those networks.

In the next chapter, you will learn the difference between a Linux bridge and Open vSwitch implementation and will be guided through the process of installing the Open vSwitch driver and agent on two additional compute nodes and a network node dedicated to distributed virtual routing functions.