VMware’s Network Virtualization Platform, NSX, is an immensely powerful technology that can transform a datacenter’s infrastructure and streamline network service delivery across the enterprise. NSX’s scope, scale, and capability will easily impress techies, CCIE’s, and IT stakeholders alike. NSX changes the topology of a traditional hardware-bound network by eliminating the dependency on all that “intelligence” baked into proprietary hardware. Instead, the logic and associated services are delivered through a software control plane. Separating the control and data planes effectively reduces the physical network to a glorified IP packet forwarder.
With that said, it is also important to understand that NSX is not a re-write of your network and the fundamental concepts it is built upon. The abstraction of the logic from the physical underpinnings is a modern approach to designing, building, and servicing network architectures, but the fundamentals — the protocols, tools, concepts, etc. — are still at play. And for that reason, i’m often baffled when I enter into a debate with a “traditional” network engineer about the ins-and-outs of physical vs. virtual networking technologies like NSX. What I quickly realize is they are not defending the concepts or technology, they are defending their skill set. It’s a fear or reluctance of straying from what they know best.…
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