RFC 3021 on 31-Bit Prefixes on IPv4 Links

[RFC Editor <rfc-ed@ISI.EDU>]

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        RFC 3021

        Title:	    Using 31-Bit Prefixes on IPv4 Point-to-Point Links
        Author(s):  A. Retana, R. White, V. Fuller, D. McPherson
        Status:     Standards Track
	Date:       December 2000
        Mailbox:    aretana@cisco.com, riw@cisco.com,
                    vaf@valinor.barrnet.net, danny@ambernetworks.com 
        Pages:      10
        Characters: 19771
        Updates/Obsoletes/SeeAlso:  None

        I-D Tag:    draft-retana-31bits-03.txt

        URL:        ftp://ftp.isi.edu/in-notes/rfc3021.txt


With ever-increasing pressure to conserve IP address space on the
Internet, it makes sense to consider where relatively minor changes
can be made to fielded practice to improve numbering efficiency.  One
such change, proposed by this document, is to halve the amount of
address space assigned to point-to-point links (common throughout the
Internet infrastructure) by allowing the use of 31-bit subnet masks
in a very limited way.

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
of this memo is unlimited.

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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