boundary network node(BNN)

In ACF／VTAM, the programming component that performs FID2 conversion, channel data link control, pacing, and channel／device error recovery procedures for a locally attached station. These functions are similar to those performed by a network control program for a NCP-attached station.; 在IBM的通信系統軟件ACF／VTAM中,執行FID2轉換、信道數據鏈路控制、調步和作為局部 連接站的信道／設備出錯恢復過程的編程部件。這些功能類似于用作網絡控制程序(NCP) 連接站的網絡控制程序所實現的那些功能。