RFC 1406 (rfc1406) - Page 1 of 50


Definitions of Managed Objects for the DS1 and E1 Interface Types



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Network Working Group                                           F. Baker
Request for Comments: 1406              Advanced Computer Communications
Obsoletes: 1232                                                  J. Watt
                                          Newbridge Networks Corporation
                                                                 Editors
                                                            January 1993


   Definitions of Managed Objects for the DS1 and E1 Interface Types

Status of this Memo

   This RFC specifies an IAB standards track protocol for the Internet
   community, and requests discussion and suggestions for improvements.
   Please refer to the current edition of the "IAB Official Protocol
   Standards" for the standardization state and status of this protocol.
   Distribution of this memo is unlimited.

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in TCP/IP-based internets.
   In particular, it defines objects for managing DS1 Interfaces --
   including both T1 and E1 (a.k.a., CEPT 2 Mbit/s) links.

   This document entirely replaces RFC 1232, which contains a
   fundamental error: many objects are encoded as Counters that must be
   encoded as INTEGERs or Gauges.  The magnitude of the change required
   is sufficient that virtually every object changed.  Therefore, the
   MIB documented in RFC 1232 should not be implemented.

Table of Contents

   1. The Network Management Framework ......................    2
   2. Objects ...............................................    2
   2.1 Format of Definitions ................................    3
   2.2 Changes from RFC 1232 ................................    3
   3. Overview ..............................................    4
   3.1 Binding between ifIndex and DS1 Interfaces ...........    5
   3.2 Objectives of this MIB Module ........................    7
   3.3 DS1 Terminology ......................................    7
   3.3.1 Error Events .......................................    7
   3.3.2 Performance Defects ................................    8
   3.3.3 Performance Parameters .............................    9
   3.3.4 Failure States .....................................   11
   3.3.5 Other Terms ........................................   13
   4. Definitions ...........................................   14
   4.1 DS1 Near End Group ...................................   14



Trunk MIB Working Group


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