This MIB module provides details concerning AHDLC engine state, performance, configuration and notification. An AHDLC channel handles one AHDLC session. AN AHDLC engine controls a set of AHDLC channels. The following diagram illustrates a typical usage of an AHDLC service adapter in a 3G CDMA wireless data network +==========+ +========+==========+ | RAdio | AHDLC packets |AHDLC | | | Network |============== |engine | PDSN | | (RAN) | | | router | +==========+ +--------+ | /|\ | | | +===================+ Mobile Node using PPP over AHDLC Two types of AHDLC engines are available - software and hardware based. A dedicated hardware allows better ahdlc framing performance. Acronyms and terms AHDLC Asynchronous High-level Data Link Control. AHDLC A dedicated resource used to channel handle one AHDLC session. AHDLC An entity managing a group of engine AHDLC channels. An AHDLC engine may be hardware assisted. CDMA Code Division Multiple Access. PDSN Packet Data Serving Node, a router connecting a CDMA wireless network to the internet. RAN Radio Network.