RFC 1283 (rfc1283) - Page 2 of 8

SNMP over OSI

RFC 1283                     SNMP over OSI                 December 1991


   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.

1.1.  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 .

   It is not the purpose of this memo to provide an exhaustive
   description of string encodings such as these.  Readers should
   consult [7] for detailed information on the syntax.  However, this



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