A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : Harmless IPv6 Address State Extension (Uncertain State)
Author(s) : H. Kitamura, S. Ata, M. Murata
Filename : draft-kitamura-ipv6-uncertain-address-state-00.txt
Pages : 9
Date : 2008-10-27
This document describes a new IPv6 address state called "Uncertain"
address state as an extension of IPv6 address state specification.
"Uncertain" address state is designed to introduce two
functionalities. One is to achieve "Address Reservation" function.
The other is to avoid a DAD (Duplicate Address Detection) time
consuming problem for dynamically created addresses.
"Uncertain" Address State is inserted between "Tentative" address
state and "Valid" address state. After "Tentative" address state
(DAD operation has finished) for a newly created address, its state
will enter to "Uncertain" address state. While an address stay at
"Uncertain" address state, the address is behaved as if it is
reserved by the node exclusively. (The other nodes can not obtain
such a reserved address.) When it becomes really necessary for the
node to utilize the reserved address, its address state is changed
into "Valid" address state without accompanying time consuming DAD
operation. By these procedures, we can avoid the DAD problem.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-kitamura-ipv6-uncertain-address-state-00.txt
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