[arin-ppml] Policy discussion - Method of calculating utilization
hannigan at gmail.com
Fri May 2 21:12:16 EDT 2014
Why should entities get a break on a standard in existence and applied to all for years?
And why is tbe aggregate, in examples given, broken? ARIN already applies that to some applicants.
Support post exhaustion.
> On May 2, 2014, at 20:52, Jimmy Hess <mysidia at gmail.com> wrote:
>> On Fri, May 2, 2014 at 7:33 PM, John Santos <JOHN at egh.com> wrote:
>>> On Fri, 2 May 2014, Jimmy Hess wrote:
>> I think 95% is too high, if the previous example of 3 /24's at 100% and
>> 1 /24 at 75% is realistic. That works out to 93.75% aggregate utilization,
>> not quite reaching the bar, so 90% might be a better threshold.
> For 3 /24s yes. The difficulty here, is trying to pick a single
> utilization proportion that works regardless of the aggregate
> allocation size, to allow for the loss of the oddball /26 or /27 that
> can neither be returned nor reused, perhaps another method is in
> order than presuming a single aggregate utilization criterion is
> the most proper.
> The more resources you are allocated, the more opportunity to make
> your resource allocation efficient. By the time you get down to a
> /26, an entire /24 is less than 0.4%.
> Aggregate Resources Allocated Required Aggregate
> Utilization criterion
> more than a /25 75%
> more than a /22, 80%
> more than a /20 85%
> more than a /19 90%
> more than a /18 95%
> more than a /17 97%
> more than a /16 98%
> more than a /15 99%
>> OTOH, /24's are pretty small and maybe that example was just for
>> illustration. If people really in this situation have much larger
>> allocations, they would be easier to slice and dice and thus use (relatively)
>> efficiently. 75% of a /24 leaves just 64 addresses (a /26) unused, which
>> even if contiguous are hard to redeploy for some other use. 75% of a /16
>> would leave 16384 unused addresses, which could be utilized much more easily.
>> Personally, I don't much care since my company has its /24, and that's
>> probably all the IPv4 we'll ever need :-)
>> John Santos
>> Evans Griffiths & Hart, Inc.
>> 781-861-0670 ext 539
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