Re: Documenting rules for the Private Enterprise Numbers registry: draft-liang-iana-pen-00

Hi Bert,

On 09/05/2012 16:03, Bert Wijnen (IETF) wrote:
> Mmm.. In IANA considerations I see:
>
>
>    o Removal of Private Enterprise Numbers:
>
>    A Contact Name can request to remove the corresponding PEN allocation
>    if the resource is no longer in used or the resource does not meet
>    the needs.  (In a case when the Contact Name is no longer with the
>    Company/Organization, the Modification procedure described above MUST
>    be used first.)  Such request does not happen often and regularly.
>
>    Requests can only be fulfilled upon verification by IANA and/or
>    subject matter experts.
>
>    If the removal request is honoured, the entry is marked as
>    "Unassigned" and can be reallocated by IANA later unless specified
>    otherwise, i.e. by marking the entry as "Reserved".
>
> How can we be assured that the once assigned PEN is not being used
> anywhere in the digital world? What is someone is still using it in
> some obsoleted/no-longer-supported product? Should he/she run the
> risk that it conflicts with a possible new assignment/allocation?

Yes, good points.

> I would rather see that it will be marked "returned on yyyy-mm-dd
> by xxxxxxx" and then that it not be re-used/allocated unless we
> run out of numbers far in the future (at that time we can decide
> if this makes sense, or possibly define another arc in
> iso.org.dod.internet.private.enterprise, for example:
>   iso.org.dod.internet.private.enterprise.2^32-1.PEN
> where 2^32-1 is a special PEN that indicates that the PEN
> is longer than 32bits.

I've changed this in my copy of -01.