Network Working Group                                            J. Case
Request for Comments:  1157                                SNMP Research
Obsoletes:  RFC 1098                                            M. Fedor
                                       Performance Systems International
                                                          M. Schoffstall
                                       Performance Systems International
                                                                J. Davin
                                     MIT Laboratory for Computer Science
                                                                May 1990


              A Simple Network Management Protocol (SNMP)


1.  Status of this Memo(略)

2.  Introduction

   As reported in RFC 1052, IAB Recommendations for the Development of
   Internet Network Management Standards [1], a two-prong strategy for
   network management of TCP/IP-based internets was undertaken.  In the
   short-term, the Simple Network Management Protocol (SNMP) was to be
   used to manage nodes in the Internet community.  In the long-term,
   the use of the OSI network management framework was to be examined.
   Two documents were produced to define the management information: RFC
   1065, which defined the Structure of Management Information (SMI)
   [2], and RFC 1066, which defined the Management Information Base
   (MIB) [3].  Both of these documents were designed so as to be
   compatible with both the SNMP and the OSI network management
   framework.

   This strategy was quite successful in the short-term: Internet-based
   network management technology was fielded, by both the research and
   commercial communities, within a few months.  As a result of this,
   portions of the Internet community became network manageable in a
   timely fashion.

   As reported in RFC 1109, Report of the Second Ad Hoc Network
   Management Review Group [4], the requirements of the SNMP and the OSI
   network management frameworks were more different than anticipated.
   As such, the requirement for compatibility between the SMI/MIB and
   both frameworks was suspended.  This action permitted the operational
   network management framework, the SNMP, to respond to new operational
   needs in the Internet community by producing documents defining new
   MIB items.

   The IAB has designated the SNMP, SMI, and the initial Internet MIB to
   be full "Standard Protocols" with "Recommended" status.  By this
   action, the IAB recommends that all IP and TCP implementations be
   network manageable and that the implementations that are network
   manageable are expected to adopt and implement the SMI, MIB, and
   SNMP.

   As such, the current network management framework for TCP/IP- based
   internets consists of:  Structure and Identification of Management
   Information for TCP/IP-based Internets, which describes how managed
   objects contained in the MIB are defined as set forth in RFC 1155
   [5]; Management Information Base for Network Management of TCP/IP-
   based Internets, which describes the managed objects contained in the
   MIB as set forth in RFC 1156 [6]; and, the Simple Network Management
   Protocol, which defines the protocol used to manage these objects, as
   set forth in this memo.

(以下，略)

7.  References

   [1] Cerf, V., "IAB Recommendations for the Development of
       Internet Network Management Standards", RFC 1052, IAB,
       April 1988.

   [2] Rose, M., and K. McCloghrie, "Structure and Identification
       of Management Information for TCP/IP-based internets",
       RFC 1065, TWG, August 1988.

   [3] McCloghrie, K., and M. Rose, "Management Information Base
       for Network Management of TCP/IP-based internets",
       RFC 1066, TWG, August 1988.

   [4] Cerf, V., "Report of the Second Ad Hoc Network Management
       Review Group", RFC 1109, IAB, August 1989.

   [5] Rose, M., and K. McCloghrie, "Structure and Identification
       of Management Information for TCP/IP-based Internets",
       RFC 1155, Performance Systems International and Hughes LAN
       Systems, May 1990.

   [6] McCloghrie, K., and M. Rose, "Management Information Base
       for Network Management of TCP/IP-based Internets",
       RFC 1156, Hughes LAN Systems and Performance Systems
       International, May 1990.