Non-broadcast multiple-access network
(重定向自NBMA)
A non-broadcast multiple access network (NBMA) is a computer network to which multiple hosts are attached, but data is transmitted only directly from one computer to another single host over a virtual circuit or across a switched fabric. NBMA networks do support multicast or broadcast traffic manually (pseudo-broadcasts). Some common examples of nonbroadcast network technologies include Asynchronous Transfer Mode (ATM), Frame Relay, X.25, and home power line networking.