Guidelines for the use of Internet-IP addresses in the ISO Connectionless-Mode Network Protocol (RFC1069)
Original Publication Date: 1989-Feb-01
Included in the Prior Art Database: 2000-Sep-12
Internet Society Requests For Comment (RFCs)
R.W. Callon: AUTHOR [+2]
The CLNP is documented in , but for matters of completeness the following illustration of the CLNP header is included here as Figure 1.
Network Working Group R. Callon
Request for Comments: 1069 DEC
Obsoletes: RFC 986 H.W. Braun
Guidelines for the use of Internet-IP addresses in the
ISO Connectionless-Mode Network Protocol
Status of This Memo
This RFC suggests an addressing scheme for use with the ISO
Connectionless Network Protocol (CLNP) in the Internet. This is a
solution to one of the problems inherent in the use of "ISO-grams" in
the Internet. This RFC suggests a proposed protocol for the Internet
community, and requests discussion and suggestions for improvements.
Distribution of this memo is unlimited.
This memo is a revision of RFC 986. Changes were made in order to
allow the addressing used in the CLNP in the Internet to be
potentially useful for routing in the context of new inter- and
intra-domain routing protocols, and in the context of large numbers
of networks and routing domains. The addressing scheme proposed in
this RFC allows individual routing domains to make use of internal
routing algorithms utilizing a variety of addressing formats, while
still providing for a common addressing approach for use by inter-
domain routing. These features are important due to the rapid growth
currently being experienced in the Internet.
The data communications protocols currently emerging out of the
international standardization efforts warrant an early integration
into the existing extensive Internet network infrastructure. The two
possible approaches are a top-down one, where ISO applications like
FTAM, X.400 and VTP are integrated on top of the transport function
of the IP protocol suite, or a bottom-up approach where the whole ISO
tower gets integrated without merging the two suites. The bottom-up
approach may make use of the fact that the ISO-CLNP and the IP are
very similar in function. This implies that it is reasonable to
implement a multiprotocol function in some or all of the Internet
gateways (potentially including part or all of the Internet
environment). The result would be that at least large portions of
the Internet, in particular the backbones, can become usable for full
implementations of the ISO protocol stack.
A major problem with this approach is that there are open issues with
regard to the ISO addressing within the CLNP. In particular, the ISO
network layer addressing standard allows a great deal of flexibility
in the assignment of addresses, and a particular address format must
be chosen. A further problem is the need for implementation and
integration of routing facilities for the ISO-compatible subset of
the Internet environment.
This paper proposed to use addresses whic...