rfc1189.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

Network Working Working Group                                 U. Warrier
Request for Comments: 1189                                       Netlabs
Obsoletes:  RFC 1095                                            L. Besaw
                                                         Hewlett-Packard
                                                              L. LaBarre
                                                   The Mitre Corporation
                                                          B. Handspicker
                                           Digital Equipment Corporation
                                                            October 1990


              The Common Management Information Services
                     and Protocols for the Internet
                            (CMOT and CMIP)

Status of this Memo

   This memo defines a network management architecture that uses the
   International Organization for Standardization's (ISO) Common
   Management Information Services/Common Management Information
   Protocol (CMIS/CMIP) in the Internet.  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. Overview ...................................................    2
   2. Introduction ...............................................    3
   3. Protocol Overview ..........................................    4
   3.1. The CMOT Protocol Suite ..................................    5
   3.2. The CMIP Protocol Suite ..................................    6
   3.3. Conformance Requirements .................................    6
   4. Common Management Information Service Element ..............    7
   4.1. Association Policies .....................................    7
   4.2. CMIS Services ............................................    9
   4.2.1 General Agreements on Users of CMIS .....................    9
   4.2.2 Specific Agreements on Users of CMIS ....................   10
   4.3. CMIP Agreements ..........................................   10
   5. Services Required by CMIP ..................................   10
   6. Acknowledgements ...........................................   11
   7. References .................................................   11
   8. Security Considerations.....................................   14
   9. Authors' Addresses..........................................   14




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RFC 1189                     CMOT and CMIP                  October 1990


1.  Overview

   This memo is a revision of RFC 1095 - "The Common Management
   Information Services and Protocol over TCP/IP" [27].  It defines a
   network management architecture that uses the International
   Organization for Standardization's (ISO) Common Management
   Information Services/Common Management Information Protocol
   (CMIS/CMIP) in the Internet.  This architecture provides a means by
   which control and monitoring information can be exchanged between a
   manager and a remote network element.  In particular, this memo
   defines the means for implementing the International Standard (IS)
   version of CMIS/CMIP on top of both IP-based and OSI-based Internet
   transport protocols for the purpose of carrying management
   information defined in the Internet-standard management information
   base.  Together with the relevant ISO standards and the companion
   RFCs that describe the initial structure of management information
   and management information base, these documents provide the basis
   for a comprehensive architecture and system for managing both IP-
   based and OSI-based internets, and in particular the Internet.

   In creating this revision of RFC 1095, the following technical and
   editorial changes were made:

      1) The tutorial section on OSI Management included in RFC 1095
         has been removed from this document.  After some revisions,
         the tutorial material may be published as another RFC.

      2) The sections in RFC 1095 which discussed the semantics of how
         to interpret requests in the context of Internet MIBs has been
         removed from this protocol document.  This topic is now
         discussed in the OIM-MIB-II draft document.  This protocol
         should be useable with MIB-I or MIB-II.  But, it will also be
         able to exploit the new features of the OIM-MIB-II.

      3) This document is based on the final International Standards
         for CMIS/CMIP (ISO 9595/9596) rather than the Draft
         International Standards.

      4) Many of the original agreements defined in RFC 1095 have been
         accepted and included in the OIW NMSIG implementers agreements.
         Rather than duplicating these agreements, they have been removed
         from this memo.  This document should be read in conjunction
         with ISO 9595/9596 (CMIS/CMIP) and the OIW Stable Agreements
         document.

      5) The Association Negotiation describe in RFC 1095 has been
         changed to align with current international and national
         agreements.  But, it has retained backwards compatibility with



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RFC 1189                     CMOT and CMIP                  October 1990


         the assignment of an Application Context Name which is identical
         to the Application Context Name specified in RFC 1095.

2.  Introduction

   This memo is the output of the OSI Internet Management Working Group
   of the Internet Engineering Task Force (IETF).  As directed by the
   Internet Activites Board (IAB) in RFC 1052, it addresses the need for
   a long-term network management system based on ISO CMIS/CMIP.  This
   memo contains a set of protocol agreements for implementing a network
   management system based on these ISO Management standards.  Now that
   CMIS/CMIP has been voted an International Standard (IS), it has
   become a stable basis for product development.  This profile
   specifies how to apply CMIP to management of both IP-based and OSI-
   based Internet networks.  Network management using ISO CMIP to manage
   IP-based networks will be refered to as "CMIP Over TCP/IP" (CMOT).
   Network management using ISO CMIP to manage OSI-based networks will
   be refered to as "CMIP".  This memo specifies the protocol agreements
   necessary to implement CMIP and accompanying ISO protocols over OSI,
   TCP and UDP transport protocols.

   This memo must be read in conjunction with ISO and Internet documents
   defining specific protocol standards.  Documents defining the
   following ISO standards are required for the implementor: Abstract
   Syntax Notation One (ASN.1) [5, 6], Association Control (ACSE) [7,
   8], Remote Operations (ROSE) [9, 10], Common Management Information
   Services (CMIS) [11] and Common Management Information Protocol
   (CMIP) [12] with their addenda [32-35].  The specification of a
   lightweight presentation layer protocol is required for use with the
   CMOT section of this profile (see RFC 1085 [13]).  The SMI (see RFC
   1065 [2]), the MIB-I (see RFC 1066 [3]), the MIB-II (see RFC 1156
   [28]), and the OIM-MIB-II (see [29]) are used with this management
   system.

   This memo is divided into sections for each of the protocols for
   which implementors' agreements are needed: CMISE, ACSE, ROSE, and,
   for CMOT, the lightweight presentation protocol.  The protocol
   profile defined in this memo draws on the technical work of the OSI
   Network Management Forum [14] and the Network Management Special
   Interest Group (NMSIG) of the National Institute of Standards and
   Technology (NIST) (formerly the National Bureau of Standards) [30].
   Wherever possible, an attempt has been made to either directly
   reference or remain consistent with the protocol agreements reached
   by these groups.







Warrier, Besaw, LaBarre & Handspicker                           [Page 3]

RFC 1189                     CMOT and CMIP                  October 1990


3.  Protocol Overview

   This part of the document is a specification of the protocols of the
   OIM architecture.  Contained herein are the agreements required to
   implement interoperable network management systems using these
   protocols.  The protocol suite defined by these implementors'
   agreements will facilitate communication between equipment of
   different vendors, suppliers, and networks.  This will allow the
   emergence of powerful multivendor network management based on ISO
   models and protocols.

   The choice of a set of protocol standards together with further
   agreements needed to implement those standards is commonly referred
   to as a "profile."  The selection policy for this profile is to use
   existing standards from the international standards community (ISO
   and CCITT) and the Internet community.  Existing ISO standards and
   draft standards in the area of OSI network management form the basis
   of this profile.  Other ISO application layer standards (ROSE and
   ACSE) are used to support the ISO management protocol (CMIP).  To
   ensure interoperability, certain choices and restrictions are made
   here concerning various options and parameters provided by these
   standards.   Internet standards are used to provide the underlying
   network transport.  These agreements provide a precise statement of
   the implementation choices made for implementing ISO network
   management standards in IP-based and OSI-based internets.

   In addition to the OIM working group, there are at least two other
   bodies actively engaged in defining profiles for interoperable OSI
   network management: the OSI Implementors Workshop (OIW) and the OSI
   Network Management Forum.  Both of these groups are similar to the
   OIM working group in that they are each defining profiles for using
   ISO standards for network management.  Both differ in that they are
   specifying the use only of underlying ISO protocols, while the OIM
   working group is concerned with using OSI management in both OSI and
   TCP/IP networks.  In the interest of greater future compatibility,
   the OIM working group has attempted to make this profile conform as
   closely as possible to the ongoing work of these two bodies.

   This section will describe the CMOT Protocol Suite, the CMIP Protocol
   Suite and Conformance Requirements common to both CMOT and CMIP.
   Later sections will specify the implementers agreements for specific
   layer protocols that comprise the CMOT and CMIP Protocol Suites.









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RFC 1189                     CMOT and CMIP                  October 1990


3.1.  The CMOT Protocol Suite

   The following seven protocols compose the CMOT protocol suite: ISO
   ACSE, ISO DIS ROSE, ISO CMIP, the lightweight presentation protocol
   (LPP), UDP, TCP, and IP.  The relation of these protocols to each
   other is briefly summarized in Figure 2.

                 +----------------------------------------------+
                         Management Application Processes
                 +----------------------------------------------+

                             +-------------------+
                                     CMISE
                                 ISO 9595/9596
                             +-------------------+

                 +------------------+       +--------------------+
                          ACSE                       ROSE
                   ISO IS 8649/8650           ISO DIS 9072-1/2
                 +------------------+       +--------------------+

                 +-----------------------------------------------+
                       Lightweight Presentation Protocol (LPP)
                                     RFC 1085
                 +-----------------------------------------------+

                 +------------------+       +--------------------+
                         TCP                         UDP
                       RFC 793                     RFC 768
                 +------------------+       +--------------------+

                 +-----------------------------------------------+
                                       IP
                                     RFC 791
                 +-----------------------------------------------+

                      Figure 2.  The CMOT Protocol Suite