RFC 2127 (rfc2127) - Page 3 of 49

ISDN Management Information Base using SMIv2

RFC 2127                        ISDN MIB                      March 1997


   defined in the SMI.  In particular, each object type is named by an
   OBJECT IDENTIFIER, an administratively assigned name.  The object
   type together with an object instance serves to uniquely identify a
   specific instantiation of the object.  For human convenience, we
   often use a textual string, termed the descriptor, to refer to the
   object type.

3.  Overview

3.1.  Structure of the MIB

   For managing ISDN interfaces, the following information is necessary:

   o    Information for managing physical interfaces. In case of ISDN
        primary rate, this are usually T1 or E1 lines, being managed in
        the DS1/E1 MIB [12].  For Basic Rate lines, physical interfaces
        are managed by this MIB.

   o    Information for managing B channels.

   o    Information for managing signaling channels.

   o    Optionally, information for managing Terminal Endpoints (TE).
        A Terminal Endpoint is a link layer connection to a switch.

   o    Optionally, information for managing a list of directory numbers.

   In order to manage connections over ISDN lines, the management of
   peer information and call history information is required as well.
   This information is defined in the Dial Control MIB [15].

   The purpose for splitting the required information in two MIBs is to
   be able to use parts of this information for non-ISDN interfaces as
   well.  In particular, the Dial Control MIB might also be used for
   other types of interfaces, e.g. modems or X.25 virtual connections.

   Within this document, information has been structured into five
   groups, which are described in the following chapters.

3.1.1.  General Description

   This MIB controls all aspects of ISDN interfaces.  It consists of
   five groups.

   o    The isdnMibBasicRateGroup is used to provide information
        regarding physical Basic Rate interfaces.

   o    The isdnMibBearerGroup is used to control B (bearer) channels.



Roeck                      Standards Track