Hi Ingrid,

> If there is a /16 “ALLOCATED UNSPECIFIED” block that contains "real" Provider 
> Independent assignments, that /16 would indeed be split in order to carve out 
> that assignment. The LIR would end up with multiple PA allocations instead of 
> one /16. The PI resource holder would be able to decide who their sponsoring 
> LIR should be. It is possible that they would remain with that same LIR, or 
> they could move to another sponsoring LIR and take their PI assignment with 
> them. If the resource holder is an LIR themselves, the PI assignment could be 
> registered under their own LIR account.

So in the current situation such a PI resource holder has "Provider 
Independent" space, but only if they stay with the LIR that holds the ALLOCATED 
UNSPECIFIED. After the change the PI holder will have a normal PI assignment 
that they can register with any sponsoring LIR they want.

So I guess that PI holders will be happy about this, it turns their "kind-of" 
PI into "real" PI.
And the affected LIRs might be less happy because they lose some grip on their 
customers.

And then there seem to be cases where the ALLOCATED PI/UNSPECIFIED is used more 
like PA space (managed, aggregated and routed by the LIR) in which case 
converting it to ALLOCATED PA might be more reasonable (for route objects, ROAs 
etc) but that might make the "PI" holder less happy. Although in such a case it 
seems to me that the address space isn't really independent to begin with, so 
in reality things will probably remain the same for them, just better formally 
documented.

Cheers,
Sander

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