[ARIN-consult] Consultation on New Experimental Allocation

Fri Aug 8 05:05:05 EDT 2014

Hi John,

My initial thoughts on that would be that we'd at least run it for a
couple of weeks initially and then publish results about that.

I could see the utility in keeping it around for longer, because the
usability of longer-then-/24 prefixes out of 23.128/10 might change as
more address space out of this block gets in use.

I think Owen brought up an important bit here: The address space used
for this must be vacated when need for it arises. We're committed to
do this on short notice, so not to impede or delay ARIN delegating the
remaining bits in 23.128/10.

If we don't receive a signal to stop earlier, we could define a
low-water mark as safeguard: Say we stop the experiment and vacate the
address space within 1 working day, once there is less than a /18 left
out of 23.128/10.

I see greatest utility in doing this on a
'run-until-right-before-space-is-needed'-basis, but please advise.

best regards,
Emile Aben
RIPE NCC

> 
> John Springer
> 
> On Mon, 4 Aug 2014, ARIN wrote:
> 
>> ARIN is soliciting community input on a proposed experiment that
>> will require the temporary use of space from 23.128.0.0/10, the
>> IPv4 addresses reserved to facilitate IPv6 deployment. (see NRPM
>> policy 4.10 https://www.arin.net/policy/nrpm.html#four10 )
>> 
>> There has been much discussion on the NANOG mailing list about
>> the usability / routability of prefixes longer than a /24. In
>> order to try to provide some additional data on this topic, the
>> RIPE NCC has requested a small block of address space from the
>> reserved /10 in order to run the following experiment:
>> 
>> RIPE Routing Information System (RIS) plans to announce a few
>> blocks of sizes /24 to /28 (no more then ten at a time) out of
>> the 23.128/10. They will monitor how this address space
>> propagates in BGP and its reachability.
>> 
>> *  This experiment will provide the global community with insight
>> on whether prefixes longer than a /24 from 23.128/10 are useable
>> and reachable on the global Internet.
>> 
>> *  A description of this experiment, as well as the results of
>> this research, will be published on https://labs.ripe.net/ .
>> Additionally, ARIN will provide a link to the RIPE Labs page, as
>> well as the end date of this experiment in the public Whois
>> record of this registration.
>> 
>> Do you support the use of this reserved space for this experiment
>> or not, and why? Please provide comments to
>> arin-consult at arin.net.
>> 
>> This consultation will remain open through 5:00 PM EDT on Monday,
>> 1 September 2014.
>> 
>> Regards,
>> 
>> Leslie Nobile Director of Registration Services American Registry
>> for Internet Numbers (ARIN)
>> 
>> 
>> 
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