Re: [narten@us.ibm.com: PI addressing in IPv6 advances in ARIN]

[Geoff Huston <gih@apnic.net>]

SHIM6 has been chartered by the IESG to work on an identified solution 
mechanism for site multi-homing in IPv6 that does not entail placing 
further burden on the global routing system.
The solution path is one that I believe has considerable longer term 
positive implications to the IP architecture in that it is an approach that 
allows a session communication to be established in a conventional manner 
and then create a further association on an end-to-end basis that allows, 
in a relatively secure fashion, the address locators to shift within the 
session without incurring the overhead of creating additional application 
or transport level associations, without adding to the cost of the overall 
network by calling for the creation of a distribution system of yet another 
unique token .
SHIM6 will continue its chartered work, of course, and is making good 
progress with the initial specification.
The issues of scaling the routing system, and the associated consideration 
of working with the inter-domain routing system to improve its robustness 
and security also continue to be an impetus for work in this space.
Personally, considering the critical consideration of scaling the IPv6 
technology to meet the needs of a truly massively populated network in the 
fullness of time, I feel entirely comfortable in seeing us work on this 
scaling issue using a number of approaches at this point in time. Therefore 
I'm of the personal view that a call to stop working on SHIM6 is somewhat 
ill-advised right now.
kind regards,

   Geoff