This topic is very crucial, as in many cases stakeholders think why do they have to invest in SDN? What can SDN provide that the legacy network cannot? That's a valid question to ask.
There are multiple good use cases where SDN can add value:
- A network operating system: The SDN platform can act as a network operating system, providing packet delivery to other applications. SDN is a platform and allows other applications to drive, use the network for their specific requirements. Always remember that SDN doesn't do any packet delivery on its own, but it requires SDN applications (many of them) to define how packets needs to get delivered in a network.
- Network Access Control: One of the SDN use cases is NAC. The SDN controller ...
