This chapter will look at ways that networking has changed in the private data centers and evolved in the past few years. It will focus on the emergence of Amazon Web Services (AWS) for public cloud and OpenStack for private cloud and ways in which this has changed the way developers want to consume networking. It will look at some of the networking services that AWS and OpenStack provide out of the box and look at some of the features they provide. It will show examples of how these cloud platforms have made networking a commodity much like infrastructure.
In this chapter, the following topics will be covered:
An overview of cloud approaches
The difference between Spanning Tree networks and Leaf-Spine networking
Changes that have occurred in networking with the introduction of public cloud
The Amazon Web Services approach to networking
The OpenStack approach to networking