let's look at what awaits you when you simply try to accommodate an expected huge number of virtual machine. Nowadays you can buy an 8-core Dell server with ~400GB memory and If your average Virtual Machine requires 5GB of memory, you could easily find yourself serving 80-100 VMs off that single server. Group a couple of those servers and you can easily overflow a typical CLASS C subnet. Here are few lessons learned you may want to look into, as you design your DEVOPs Internal Cloud Network Architecture: