This is an idea based on past operation right here at ARIN.
Right after CIDR was started, there was a move, although not mandatory to
get those requesting more IPv4 space, especially those holding many
multiple blocks to give these parties a larger single block, and time to
renumber into the larger block before taking back the multiple smaller
blocks for reassignment to others with less need.
I know with IPv6 that some amount of space is being held in reserve so
this idea would not be triggered until at least one expansion request was
received by ARIN. I remember that early ISP assignments were a /35, and
they were permitted to expand into a /32 if they wished. I do not know if
this wiped out the reserve space or not.
Does anyone know how much space is currently being held in reserve when a
new /32 assignment for an ISP of IPv6 space is being made at ARIN?
You are likely right that there would be low support for a renumber
requirement once they exhaust their reserved space. However, offering
them a new larger block (with the associated future reserved space) and a
period of time to move over might still be a good idea since that leaves
them with just one block of space.
I remember when discussing another proposal that it was revealed that very
few people have ever came back for another block of IPv6. Also, ISP's
could manage a lot of this themselves without the need to request more
resources by for example only issuing a /64 to each customer by default,
and only providing a /48 upon request. Some are only providing a /60 or
/56 instead of a /48 which drastically reduces use of that block.
Albert Erdmann
Network Administrator
Paradise On Line Inc.
On Thu, 18 Jul 2019, Job Snijders wrote:
On Thu, Jul 18, 2019 at 5:48 PM Roberts, Orin <[email protected]> wrote:
Well said Albert, I agree with this viewpoint, IPv6 was meant to solve the
existing IPv4 operational issues; I see this policy proposal as extending them.
I cannot believe that the idea of "if you want a larger block, you'll
need to renumber everything into the new block" is receiving any form
of support. This idea strike me as actively harmful towards any form
of IPv6 deployment.
Kind regards,
Job
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