[ipv6-wg at ripe.net] Re: What is a site?

Fully agree with this view.

I think if we really want to go into this direction, the HD ratio
modification seems a better idea. I actually have already thought long time
ago that we can't compare in terms of efficiency IPv4 with IPv6, so no
reason for keeping the same ratio.

Regards,
Jordi




> De: Daniel Roesen <dr at cluenet.de>
> Responder a: "ipv6-wg-admin at ripe.net" <ipv6-wg-admin at ripe.net>
> Fecha: Mon, 9 May 2005 14:10:08 +0200
> Para: <ipv6-wg at ripe.net>
> Asunto: [ipv6-wg at ripe.net] Re: What is a site?
> 
> On Mon, May 09, 2005 at 12:40:37PM +0200, Gert Doering wrote:
>> Personally, I opt for a /128+/64+/56+/48 model, with a suffiently relaxed
>> policy that permits /48 assignments to anything that risks being limited
>> by 256 subnets. 
>> 
>> So typical large-scale DSL rollouts can be provisioned on an automated
>> base with /56s, providing enough space for 99.99% of all customers
>> ("pick another arbitrary number").
> 
> I do agree that /56s will be enough for almost all customers. But then
> you will see scenarious that people outgrow the /56 and need a new /48
> and renumber AND restructure their network into this new space. THIS is
> what "/48 for everone" is trying to prevent as much as possible.
> Reserving a /48 space but only assigning /56 makes no sense either. A
> /56 is 256 subnets only if ignoring ANY hierarchy. If you accept 2-3
> levels of hierachy into the customer network, your efficiency goes down,
> and 8bits of subnetting starts to smell v4ish again.
> 
> I could probably agree to /56 for residential access though. But
> definately not for non-residential access like non-miniature companies,
> universities etc.
> 
> Do we really gain enough by going down to /56 that is worth the hassle?
> 
> IMHO, changing the HD-Ratio is a better idea, with no downside I can
> currently see (can anyone?).
> 
> 
> Best regards,
> Daniel
> 
> -- 
> CLUE-RIPE -- Jabber: dr at cluenet.de -- dr at IRCnet -- PGP: 0xA85C8AA0
> 




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