Response Modes

Both asynchronous disconnect mode (ADM) and asynchronous balanced mode extended (ABME) are supported.

ADM is entered by default whenever a link session is initiated, and is switched to ABME only after the set asynchronous balanced mode extended (SABME) command sequence is complete. Once operating in ABME, information frames containing user data can be transferred. ABME then remains active until the LLC session terminates, which occurs because of a disconnect (DISC) command packet sequence or a major link error.