A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : IPv4 ID Uniqueness Requirements
Author(s) : J. Touch, M. Mathis
Filename : draft-touch-intarea-ipv4-unique-id-01.txt
Pages : 10
Date : 2009-03-09
The IPv4 Identification (ID) field enables fragmentation and
reassembly, but is required and must be unique within the maximum
segment lifetime on all packets. If implemented as required, this
uniqueness would limit all connections to 6.4 Mbps; since this is
ubiquitously not the case, it is clear that existing systems violate
the current requirement. This document updates the requirements for
the IP ID field to more closely reflect current practice, and to more
closely match IPv6, in which the field is defined only when a packet
is actually fragmented. Even when fragmented, this document
recommends that the ID field uniqueness consider the reordering
context, rather than an arbitrary, unenforced upper bound on segment
lifetime.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-touch-intarea-ipv4-unique-id-01.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-touch-intarea-ipv4-unique-id-01.txt>
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