Hi Simon,

Le 16 avr. 2010 à 14:02, Simon Perreault a écrit :

> On 2010-04-16 05:04, Rémi Després wrote:
>> (The current scope is: - DS-lite only - Only port-control servers
>> that assign ports one by one.)
>> 
>> 1. With the IPv4 address shortage, ISP NATs will be more and more
>> necessary not only in point-to-point configurations, DS-lite in
>> particular, but also in point-to-multipoint configurations, NAT444 in
>> particular. PCP should therefore be a *generic port reservation
>> protocol* applicable to both point-to-point and point-to-multipoint
>> access networks*. If this would be difficult, reasons why limiting to
>> DS-lite would significantly simplify the design should IMHO be
>> discussed.
> 
> I had understood the scope to also include NAT64. See section 2.

Strictly speaking, you are right, but section 2 starts with 
"PCP has a very focused goal of allowing port reservation in the context of 
Dual-Stack Lite".
Other configurations should, IMHO, be clearly on the same footing.

> Unless the authors foresee specific problems with a larger scope, I
> agree it should be expanded to "any NAT44 or NAT64." Let's focus on logical 
> functions, not on specific deployments.
> 
> The scope should also include multiple layers of NAT.

Agreed.
PCP must be a protocol between PCP clients and PCP servers, with enough initial 
use cases to justify it, but without preventing other use cases to be found 
useful.

Regards,
RD


> 
> Simon
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