[address-policy-wg] Policy proposal: #alpha: TLD Anycast Allocation Policy

Hi,

El 30/03/2005, a las 21:30, Hans Petter Holen escribió:

>
>
> Jon Lawrence wrote:
>
>>
>>> PI will come or IPv6 not fly. Face it.
>>>
>>>
> I agree that IPv6 needs multi-homing to fly - but I was hoping there 
> would be other technical implementations of multi-homing than PI.
> I do however undersand how multi-homing works with PI addresses - I am 
> not shure I can say the same of other proposals.
>

I think that it is important to distinguish between the different type 
of sites and their requirements. I mean i guess that there is a 
difference between the requirements of a big site with multiple 
locations over the globe and the requirements of a home network 
multihomed to the ADSL and cable providers.

In addition, i guess that the expected number of multihomed home 
networks is quite higher than the expected number of really big 
multihomed sites.

So we have that multihoming does not mean the same in the different 
scenarios. We have different requirements and different scalability 
requirements.
I guess that is it important to find a solution for SOHO multihomed 
that does not impose additional routes in the global routing table, 
because of the expected number of such sites. Perhaps such solution 
will not provide all the benefits of current BGP based multihoming 
(like traffic engineering, provider independence and perhaps some 
other). However, it will probably will suit the needs of most SOHO 
multihomed networks.

On the other hand, it is possible that certain mutlihomed sites 
(probably the big ones) won't find that this alternative solution will 
suit their needs. In this case, i guess that it is reasonable to assign 
PI to those.

So, my take is that the path is to first understand what types of 
multihomed sites are well serve with an alternative multihoming 
solution (like the shim being deployed in the IETF) that does not 
impose additional burden in the inter domain routing. then understand 
what sites are not well served by this solution and really need BGP 
based multihoming. At this point i guess we could be ready to define a 
policy to assign PI addresses for this type of sites that really need 
it for multihoming.

Regards, marcelo


> -hph
>