DOCSIS Cable Device MIB Cable Device Management Information Base for DOCSIS compliant Cable Modems and Cable Modem Termination Systems
RFC 2669

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Network Working Group                                  M. St. Johns, Ed.
Request for Comments: 2669                                 @Home Network
Category: Proposed Standard                                  August 1999

                        DOCSIS Cable Device MIB
                Cable Device Management Information Base
                 for DOCSIS compliant Cable Modems and
                    Cable Modem Termination Systems

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it defines a basic set of managed objects for SNMP-
   based management of DOCSIS 1.0 compliant Cable Modems and Cable Modem
   Termination Systems.

   This memo specifies a MIB module in a manner that is compliant to the
   SNMP SMIv2 [5][6][7].  The set of objects is consistent with the SNMP
   framework and existing SNMP standards.

   This memo is a product of the IPCDN working group within the Internet
   Engineering Task Force.  Comments are solicited and should be
   addressed to the working group's mailing list at ipcdn@terayon.com
   and/or the author.

Table of Contents

   1 The SNMP Management Framework ................................... 2
   2 Glossary ........................................................ 3
   2.1 CATV .......................................................... 3
   2.2 CM ............................................................ 3
   2.3 CMTS .......................................................... 4
   2.4 DOCSIS ........................................................ 4

St. Johns                      Standards                        [Page 1]
RFC 2669                DOCSIS Cable Device MIB              August 1999

   2.5 Downstream .................................................... 4
   2.6 Head-end ...................................................... 4
   2.7 MAC Packet .................................................... 4
   2.8 MCNS .......................................................... 4
   2.9 RF ............................................................ 4
   2.10 Upstream ..................................................... 4
   3 Overview ........................................................ 4
   3.1 Structure of the MIB .......................................... 5
   3.2 Management requirements ....................................... 6
   3.2.1 Handling of Software upgrades ............................... 6
   3.2.2 Events and Traps ............................................ 6
   3.2.3 Trap Throttling ............................................. 8
   3.2.3.1 Trap rate throttling ...................................... 8
   3.2.3.2 Limiting the trap rate .................................... 8
   3.3 Protocol Filters .............................................. 9
   3.3.1 Inbound LLC Filters - docsDevFilterLLCTable ................ 10
   3.3.2 Special Filters ............................................ 10
   3.3.2.1 IP Spoofing Filters - docsDevCpeTable .................... 10
   3.3.2.2 SNMP Access Filters - docsDevNmAccessTable ............... 10
   3.3.3 IP Filtering - docsDevIpFilterTable ........................ 11
   3.3.4 Outbound LLC Filters ....................................... 13
   4 Definitions .................................................... 13
   5 Acknowledgments ................................................ 51
   6 References ..................................................... 51
   7 Security Considerations ........................................ 52
   8 Intellectual Property .......................................... 54
   9 Author's Address ............................................... 54
   10 Full Copyright Statement ...................................... 55

1.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

   o   An overall architecture, described in RFC 2571 [1].

   o   Mechanisms for describing and naming objects and events for the
       purpose of management. The first version of this Structure of
       Management Information (SMI) is called SMIv1 and described in STD
       16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4].  The
       second version, called SMIv2, is described in STD 58, RFC 2578
       [5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7].

   o   Message protocols for transferring management information. The
       first version of the SNMP message protocol is called SNMPv1 and