In a distant network long, long ago, highly skilled network operators took it upon themselves to evolve their network management practices. Over time, these brave few created a primitive language, allowing them to communicate with network devices one by one. While this was a step
in the right direction, it was still painstakingly slow and laborious.
Then one day, tired of working with only a single device at a time, there was a break-though. These network operators learned to write scripts, and these “scripts” could
speak to entire classes and categories of network devices. This proved to be a significant improvement from the past.
Finally, through the power of abstraction and modeling, IT automation had finally become easy and universal for all levels of network operators. Intent-based networking now began to drive networks, causing vendor lock-in to become a thing of the past.