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Cable Device Management Information Base for Data-Over-Cable Service Interface Specification (DOCSIS) Compliant Cable Modems and Cable Modem Termination Systems
RFC 4639

Network Working Group                                          R. Woundy
Request for Comments: 4639                                 Comcast Cable
Obsoletes: 2669                                                 K. Marez
Category: Standards Track                                       Motorola
                                                           December 2006

              Cable Device Management Information Base for
        Data-Over-Cable Service Interface Specification (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 IETF Trust (2006).

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 Simple
   Network Management Protocol (SNMP)-based management of Data Over
   Cable Service Interface Specification (DOCSIS)-compliant Cable Modems
   and Cable Modem Termination Systems.

   This memo obsoletes RFC 2669.

Woundy & Marez              Standards Track                     [Page 1]
RFC 4639                DOCSIS Cable Device MIB            December 2006

Table of Contents

   1. The Internet-Standard Management Framework ......................3
   2. Glossary ........................................................3
      2.1. CATV .......................................................3
      2.2. CM or Cable Modem ..........................................3
      2.3. CMTS or Cable Modem Termination System .....................3
      2.4. DOCSIS or Data-Over-Cable Service Interface Specification ..3
      2.5. Downstream .................................................4
      2.6. Head-End ...................................................4
      2.7. Media Access Control (MAC) Packet ..........................4
      2.8. RF .........................................................4
      2.9. Simple Network Management Protocol (SNMP) ..................4
      2.10. Upstream ..................................................4
   3. Introduction ....................................................4
      3.1. Structure of the MIB .......................................5
           3.1.1. IMPORTed MIB Modules and REFERENCE Clauses ..........6
           3.1.2. Persistence Model for Cable Modems ..................6
           3.1.3. IPv4 Compliance .....................................6
      3.2. Management Requirements ....................................7
           3.2.1. Handling of Software Upgrades .......................7
           3.2.2. Events and Notifications ............................8
           3.2.3. Notification Throttling .............................8
                  3.2.3.1. Notification Rate Throttling ...............8
                  3.2.3.2. Limiting the Notification Rate .............9
      3.3. Protocol Filters ...........................................9
           3.3.1. Inbound LLC Filters: docsDevFilterLLCTable .........10
           3.3.2. Special Filters ....................................11
                  3.3.2.1. IP Spoofing Filters:
                           docsDevCpeTable, docsDevCpeInetTable ......11
                  3.3.2.2. SNMP Access Filters:
                           docsDevNmAccessTable ......................11
           3.3.3. IP Filtering: docsDevFilterIpTable .................12
           3.3.4. Outbound LLC Filters ...............................13
   4. Definitions ....................................................13
   5. Acknowledgements ...............................................78
      5.1. Revision Descriptions .....................................78
   6. Security Considerations ........................................79
   7. IANA Considerations ............................................82
   8. References .....................................................83
      8.1. Normative References ......................................83
      8.2. Informative References ....................................85

Woundy & Marez              Standards Track                     [Page 2]
RFC 4639                DOCSIS Cable Device MIB            December 2006

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

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