Distributed Management Expression MIB
RFC 2982

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Network Working Group                                       R. Kavasseri
Request for Comments: 2982                      (Editor of this version)
Category: Standards Track                                     B. Stewart
                                            (Author of previous version)
                                                     Cisco Systems, Inc.
                                                            October 2000

                 Distributed Management Expression MIB

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 (2000).  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 describes managed objects used for managing
   expressions of MIB objects.  The results of these expressions become
   MIB objects usable like any other MIB object, such as for the test
   condition for declaring an event.

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119.

Table of Contents

   1 The SNMP Management Framework ...............................    2
   2 Overview ....................................................    3
   2.1 Usage .....................................................    4
   2.2 Persistence ...............................................    4
   2.3 Operation .................................................    4
   2.3.1 Sampling ................................................    5
   2.3.2 Wildcards ...............................................    5
   2.3.3 Evaluation ..............................................    5
   2.3.4 Value Identification ....................................    6
   2.4 Subsets ...................................................    6
   2.4.1 No Wildcards ............................................    6

Kavasseri & Stewart         Standards Track                     [Page 1]
RFC 2982         Distributed Management Expression MIB      October 2000

   2.4.2 No Deltas ...............................................    7
   2.5 Structure .................................................    7
   2.5.1 Resource ................................................    7
   2.5.2 Definition ..............................................    7
   2.5.3 Value ...................................................    8
   2.6 Examples ..................................................    8
   2.6.1 Wildcarding .............................................    8
   2.6.2 Calculation and Conditional .............................   10
   3 Definitions .................................................   12
   4 Intellectual Property .......................................   36
   5 Acknowledgements ............................................   37
   6 References ..................................................   37
   7 Security Considerations .....................................   38
   8 Author's Address ............................................   40
   9 Editor's Address ............................................   40
   10 Full Copyright Statement ...................................   41

1.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

    o   An overall architecture, described in RFC 2571 [RFC2571].

    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 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC
        1215 [RFC1215].  The second version, called SMIv2, is described
        in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and
        STD 58, RFC 2580 [RFC2580].

    o   Message protocols for transferring management information.  The
        first version of the SNMP message protocol is called SNMPv1 and
        described in STD 15, RFC 1157 [RFC1157].  A second version of
        the SNMP message protocol, which is not an Internet standards
        track protocol, is called SNMPv2c and described in RFC 1901
        [RFC1901] and RFC 1906 [RFC1906].  The third version of the
        message protocol is called SNMPv3 and described in RFC 1906
        [RFC1906], RFC 2572 [RFC2572] and RFC 2574 [RFC2574].

    o   Protocol operations for accessing management information.  The
        first set of protocol operations and associated PDU formats is