Remote Network Monitoring Management Information Base
RFC 1271

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Network Working Group                                      S. Waldbusser
Request for Comments: 1271                    Carnegie Mellon University
                                                           November 1991

         Remote Network Monitoring Management Information Base

Status of this Memo

   This memo is an extension to the SNMP MIB.  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.

Table of Contents

   1. Abstract ..............................................    2
   2. The Network Management Framework.......................    2
   3. Objects ...............................................    2
   3.1 Format of Definitions ................................    3
   4. Overview ..............................................    3
   4.1 Remote Network Management Goals ......................    3
   4.2 Textual Conventions ..................................    5
   4.3 Structure of MIB .....................................    5
   4.3.1 The Statistics Group ...............................    6
   4.3.2 The History Group ..................................    6
   4.3.3 The Alarm Group ....................................    6
   4.3.4 The Host Group .....................................    6
   4.3.5 The HostTopN Group .................................    6
   4.3.6 The Matrix Group ...................................    7
   4.3.7 The Filter Group ...................................    7
   4.3.8 The Packet Capture Group ...........................    7
   4.3.9 The Event Group ....................................    7
   5. Control of Remote Network Monitoring Devices ..........    7
   5.1 Resource Sharing Among Multiple Management Stations ..    8
   5.2 Row Addition Among Multiple Management Stations ......    9
   6. Definitions ...........................................   10
   7. Acknowledgments .......................................   80
   8. References ............................................   80
   Security Considerations...................................   81
   Author's Address..........................................   81

Remote Network Monitoring Working Group                         [Page 1]
RFC 1271             Remote Network Monitoring MIB         November 1991

1.  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 remote network
   monitoring devices.

2.  The Network Management Framework

   The Internet-standard Network Management Framework consists of three
   components.  They are:

      RFC 1155 which defines the SMI, the mechanisms used for describing
      and naming objects for the purpose of management.  RFC 1212
      defines a more concise description mechanism, which is wholly
      consistent with the SMI.

      RFC 1156 which defines MIB-I, the core set of managed objects for
      the Internet suite of protocols.  RFC 1213, defines MIB-II, an
      evolution of MIB-I based on implementation experience and new
      operational requirements.

      RFC 1157 which defines the SNMP, the protocol used for network
      access to managed objects.

   The Framework permits new objects to be defined for the purpose of
   experimentation and evaluation.

3.  Objects

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1) [7]
   defined in the SMI.  In particular, each object has a name, a syntax,
   and an encoding.  The name is an object identifier, an
   administratively assigned name, which specifies an object type.  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 OBJECT
   DESCRIPTOR, to also refer to the object type.

   The syntax of an object type defines the abstract data structure
   corresponding to that object type.  The ASN.1 language is used for
   this purpose.  However, the SMI [3] purposely restricts the ASN.1
   constructs which may be used.  These restrictions are explicitly made
   for simplicity.

   The encoding of an object type is simply how that object type

Remote Network Monitoring Working Group                         [Page 2]
RFC 1271             Remote Network Monitoring MIB         November 1991

   is represented using the object type's syntax.  Implicitly
   tied to the notion of an object type's syntax and encoding is
   how the object type is represented when being transmitted on
   the network.