VMware NSX: What's All the fuss About?
Now, everyone won't change at once, for sure. In fact, it may be many years before the software-defined networking because the normal for our customers. But it is the shape of the future, on that, everyone—Cisco, VMware, Arista, Juniper, you name it—agrees.
SDN is all about this same kind of separation, only this time with the components of networking itself, allowing network services to break free from the constraints levied upon them by 20-year-old traditional networking technologies.
- (5) Network load-balancers web-facing servers
- (2) Application logic servers
- (2) Clustered database servers
And then repeat if you need to scale out to more servers!
NSX Software-Defined Configuration
And now imagine that you are a service provider or an organization that has compliance needs. Now with every separate security group you can still share hardware, but you can apply your policies granularly, at the VM level. More intelligence in the software means you need less physical equipment, physical separation, which saves your company both money and time.
Now, let's look to future: imagine dynamic security groups tied to network policies, storage policies, compute policies, and such: "deploy from a template" will take on a whole new meaning!