RFC 1161 (rfc1161) - Page 2 of 8

SNMP over OSI

RFC 1161                     SNMP over OSI                     June 1990


   It should not be surprising that many of these sites might acquire
   OSI capabilities and may wish to leverage their investment in SNMP
   technology towards managing those OSI components.  This memo
   addresses these concerns by defining a framework for running the SNMP
   in an environment which supports the OSI transport services.

   In OSI, there are two such services, a connection-oriented transport
   services (COTS) as defined in [4], and a connectionless-mode
   transport service (CLTS) as defined in [5].  Although the primary
   deployment of the SNMP is over the connectionless-mode transport
   service provided by the Internet suite of protocols (i.e., the User
   Datagram Protocol or UDP [6]), a design goal of the SNMP was to be
   able to use either a CO-mode or CL-mode transport service.  As such,
   this memo describes mappings from the SNMP onto both the COTS and the
   CLTS.

2.1.  A Digression on User Interfaces

   It is likely that user-interfaces to the SNMP will be developed that
   support multiple transport backings.  In an environment such as this,
   it is often important to maintain a consistent addressing scheme for
   users.  Since the mappings described in this memo are onto the OSI
   transport services, use of the textual scheme described in [7], which
   describes a string encoding for OSI presentation addresses, is
   recommended.  The syntax defined in [7] is equally applicable towards
   transport addresses.

   In this context, a string encoding usually appears as:

      [/][+]

      where:

      (1)   is usually either an ASCII string enclosed
           in double-quotes (e.g., "snmp"), or a hexadecimal number
           (e.g., '736e6d70'H);

      (2)   is one of several well-known providers of a
           connectivity-service, one of: "Internet=" for a
           transport-service from the Internet suite of protocols,
           "Int-X25=" for the 1980 CCITT X.25 recommendation, or
           "NS+" for the OSI network service;

      (3)   is an address in a format specific to the
           ; and,

      (4)   is any additional addressing information in a
           format specific to the .



IETF SNMP Working Group