The previous two chapters incrementally introduced different ways to interact with the network devices. In Chapter 2, Low Level Network Device Interactions, we discussed Pexpect and Paramiko that manage an interactive session automatically. In Chapter 3, API and Intent-Driven Networking, we saw that networking is not just about individual devices, as it is a way for us to connect individual parts together, but our overall goal typically requires a higher business logic. For example, imagine this hierarchy of thought process from forming our business objective to actually perform an action on a networking device (with the top being close to the business logic): we looked at various APIs that provide a structured way of feedback from device as well as some well-defined command structure. Both of the methods are fairly low level, meaning they are focused on the individual device that we are performing our action on.
You wake up one...