[arin-ppml] ARIN-2013-4: RIR Principles / Request for General Thoughts

[Michael Sinatra]

On 06/25/2013 20:11, David Farmer wrote:

>> 2) Do you support the principle of hierarchical aggregation
>> (Routability)?
>
> Yes, however the need for hierarchical aggregation should be less about
> who should or shouldn't get allocations and more about ensuring that
> subsequent allocations are aggregateable with previous allocations to
> the greatest extent possible.  This is exemplified by sparse allocation
> within IPv6.

+1

I gave this a flat-out "no" when I answered, but I now realize that 
David has raised an excellent caveat that I agree with.  My opinion is a 
bit more stringent: Aggregability is useful; *hierarchical* 
aggregability, as was originally envisioned for IPv6, has turned out to 
be not useful.

michael