RFC 1467 (rfc1467) - Page 2 of 9
Status of CIDR Deployment in the Internet
Alternative Format: Original Text Document
RFC 1467 Status of CIDR Deployment in the Internet August 1993
order to ensure the continued stable operation of the Internet.
Recognizing the need for the mid-term mechanisms and receiving
support from the Internet community, the US Federal Agencies proposed
procedures to assist the deployment of these mid-term mechanisms.
These procedures were originally described in RFC 1366 [1], which was
recently made obsolete by RFC 1466 [2]. In October 1992, a schedule
was proposed for the implementation of the procedures, described in
RFC 1367 [3].
2. Milestones that have been met
Most of the milestones of the proposed schedule were implemented on
time. These milestones are shown below, essentially as they appear in
[3], but with further comment where appropriate:
1) 31 October 92:
The following address allocation procedures were continued:
a) Initial set of criteria for selecting regional address
registries were put into place, and requests from
prospective regional registries were accepted by the
IANA.
The Reseaux IP Europeens Network Coordination Centre
(RIPE NCC) requested to become a regional registry.
As per the addressing plan of RFC 1366, the RIPE NCC
was given the block 194.0.0.0 to 195.255.255.255 to
administer for the European Internet community. The RIPE
NCC had previously and independently obtained the block
193.0.0.0 to 193.255.255.255. Although this block had been
allocated before RFC 1366, the RIPE NCC was able to manage
it according to the guidelines in RFC 1366.
b) Class A network numbers were put on reserve for possible
future use. The unreserved Class A numbers became very
difficult to obtain.
c) Class B network numbers were issued only when
reasonably justified. Whenever possible, a block of C's
was issued rather than a B. The requirements for
allocating a Class B became progressively more constrained
until the date in step (3).
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