The network isn't just the open internet. There's also the part inside the network. You can view Comcast as a black box that magically gets packets from one side to the other, but Comcast engineers can't.
The network isn't just the open internet. There's also the part inside the network. You can view Comcast as a black box that magically gets packets from one side to the other, but Comcast engineers can't.
If you want to run a single massive scale network sure. One of the costs of scaling that the majority don’t see
No reason you can’t carry IPv4 over any protocol you want. Multi tennant vxlans can carry whatever you want over your base network. Maybe an IPv6 underlay makes sense there, doesn’t really matter