Automation allows networks to come and go at will, following the movements of servers and storage as needs change. This is sometimes referred to as agility—the ability to dynamically instantiate networks
and to disable them when they are no longer needed. This must happen fast, efficiently, and with a minimum of human intervention. Not only do networks come and go—they also tend to expand and contract.
Clearly, it may require a dynamic, agile, and automated network to keep pace with these changes.