Network Working Group J. Onions
Request for Comments:
1606 Nexor Ltd.
Category: Informational 1 April 1994
A Historical Perspective On The Usage Of IP Version 9
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Abstract
This paper reviews the usages of the old IP version protocol. It
considers some of its successes and its failures.
Introduction
The take-up of the network protocol TCP/IPv9 has been phenomenal over
the last few years. Gone are the days when there were just a few
million hosts, and the network was understood. As the IP version 9
protocol comes to the end of its useful life, once again due to
address space exhaustion, we look back at some of the success of the
protocol.
Routing
The up to 42 deep hierarchy of routing levels built into IPv9 must
have been one of the key features for its wide deployment. The
ability to assign a whole network, or group of networks to an
electronic component must be seen as one of the reasons for its
takeup. The use of the Compact Disk Hologram units is typical of the
usage. They typically have a level 37 network number assigned to each
logical part, and a level 36 network number assigned to the whole
device. This allows the CDH management protocol to control the unit
as a whole, and the high-street vendor to do remote diagnostics on
discreet elements of the device. This still allows sub-chip routing
to be done using the 38th level addressing to download new nanocode.
As yet, no requirement has been found for levels 40-42, with level 39
still being used for experimental interrogation of atomic structure
of components where required.