I've already asked Pasi for adding this discussion to Agenda, Paris.
There's some topic I want to add to my draft, which I'll do so by Paris.
(which I wrote like "I'll write this part by Paris" in 00 version)
> A new version of I-D, draft-naito-nat-resource-optimizing-extension-00.txt has been successfully submitted by Kengo and posted to the IETF repository.
> Filename: draft-naito-nat-resource-optimizing-extension
> Revision: 00
> Title: NAT resource optimizing extension
> Creation date: 2012-03-05
> WG ID: Individual Submission
> Number of pages: 4
> When NAT is used in address resource restricted environment, or when
> a lot of users are located under a NAT device, IP address and port
> resources may be eaten up, and it brings severe bad effects on user
> experiences. This situation can be greatly mitigated by tweaking
> mapping behavior and session timer handling at NAT function. This
> document proposes to NAT IP address and port resource optimizing
> extension for address resource restricted environment. One extension
> is to enable simultaneous use of a port for different transport
> sessions, and the other is to make use of TCP timestamp for TIME_WAIT
> The IETF Secretariat