That sounds a lot like ATM where you called a machine and received a point to point pipe. Though you had to call first unlike Ethernet where you fling packets i

That sounds a lot like ATM where you called a machine and received a point to point pipe. Though you had to call first unlike Ethernet where you fling packets into the ether at will. ATM over SONET is used heavily in teleco but is on its way out in favor of OTN and Ethernet.