In the network application layer of DNA (DIGITAL Network Architecture), aprotocol that allows a node, which is not connected directly to an IBM SNA network, access to the facilities of the SNA network for terminal access and remote job entry.; DIGITAL 網(wǎng)絡(luò)體系結(jié)構(gòu)(DNA)的網(wǎng)絡(luò)應(yīng)用層中的一種規(guī)程,它允許未與一個IBM SNA網(wǎng)絡(luò)直接 連接的網(wǎng)點為了進行終端訪問和遠程作業(yè)輸入而訪問該SNA(系統(tǒng)網(wǎng)絡(luò)體系結(jié)構(gòu))網(wǎng)的有關(guān) 設(shè)施［功能部件］。