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.