RFC 1161 (rfc1161) - Page 2 of 8
SNMP over OSI
Alternative Format: Original Text Document
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