RFC 3440 (rfc3440) - Page 2 of 36


Definitions of Extension Managed Objects for Asymmetric Digital Subscriber Lines



Alternative Format: Original Text Document



RFC 3440                ADSL Line Extension MIB            December 2002


1.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC 3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC 2578], STD 58, RFC 2579 [RFC 2579] and STD 58, RFC 2580
   [RFC 2580].

2.  Introduction

   The purpose of this memo is to define a supplemental set of managed
   objects that is not covered by the ADSL Line MIB as defined in
   [RFC 2662].  This memo addresses the additional objects defined in ITU
   G.997.1 [ITU G.997.1].

3.  Relationship of ADSL Line Extension MIB with standard MIBs

   This section outlines the relationship of the ADSL Line Extension MIB
   with other MIBs described in RFCs and in their various degrees of
   standardization.  In regards to these relationships, the ADSL Line
   Extension MIB follows conventions as used by the ADSL Line MIB with
   one exception.  The value of the RFC 2863 object, ifOperstatus, SHALL
   be down(2) when the ADSL line interface is in power state L3, as
   defined in ITU G.992.1 [ITU G.992.1], which means no power.  Its
   value shall be up(1) if the ADSL line interface is in power state L0
   (power on) [ITU G.992.1] or L1 (reduced power).  Power Status L2 [ITU
   G.992.1] is not applicable.

4.  Conventions used in the MIB

4.1  Structure

   The MIB is organized to follow the same structure of the ADSL Line
   MIB [RFC 2662].










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