Hype or not SDN is the next logical step after virtualization, which has grown up enough for everyday use, especially by VMware end of the nineties. Hypervisors like Citrix Xen,
Microsoft Hyper-V, VMware vSphere (ESXi) or KVM are grown up and for some time powerful tools. What the SDN now adds is true flexibility.
SDN meets Cloud
Cloud Computing , probably one of the most discussed topics of the recent past is, depending on the approach and the application scenario either the technology of the future or a marketing hype with numerous uncertainties. Undeniably, the evolution leads to the Cloud Computing, The Cloud is the flexible infrastructure for all other technologies. No more, no less. So the data center is no longer numerous pizza boxes in the racks, but rather virtual pizza boxes on a host server.
