[arin-ppml] Support proposal 2010-2: /24 end-user assignments

Owen DeLong owen at delong.com
Sun Apr 18 14:20:56 EDT 2010

	In toto, this policy probably won't increase aggregation much, but, it certainly won't increase deaggregation and does provide for increased aggregation potential vs. the way things are now. I think the magnitude of these beneficial effects is small, but, these are a side-effect of the policy.

	The primary benefit of the policy is for small multihomers to be able to get space directly from ARIN rather than from one of their upstream providers. It offers them the chance at a different set of tradeoffs as follows:

Current									2010-2
======================				=========================
Renumber if you change ISP				Renumber if you grow out of your /24 or /23

Just keep adding more /24s to grow		Renumber (up to /22), then, additional
										assignments as needed.

Every /24 == More routes					One route per ARIN prefix, one route to /22,
										possibly additional ones once you're larger.

ISP controls your destiny					Control your own destiny

Hope that helps you understand the intent and tradeoffs around 2010-2.


On Apr 18, 2010, at 10:57 AM, Milton L Mueller wrote:

> Bill,
> I have a question about the anticipated time horizon for the beneficial effects of 2010-2.  This policy is about cleaning up the ipv4 space by consolidating smaller assignments for multihomers and involves returning and in some cases renumbering. For renumbering cases a one-year cycle of dual assignments is involved. The question: how many years do you think it would take for this policy to have an appreciable effect on aggregation? And do you think would that effect be one of slowing table growth or actually reducing its size? Please note: I am not questioning the beneficial effects, just interested in their anticipated magnitude and the speed with which they would happen.
> Milton Mueller
> Professor, Syracuse University School of Information Studies
> XS4All Professor, Delft University of Technology
> ------------------------------
> Internet Governance Project:
> http://internetgovernance.org
>> -----Original Message-----
>> From: arin-ppml-bounces at arin.net [mailto:arin-ppml-bounces at arin.net] On
>> Behalf Of William Herrin
>> Sent: Saturday, April 17, 2010 8:05 PM
>> To: arin-ppml at arin.net
>> Subject: [arin-ppml] Support proposal 2010-2: /24 end-user assignments
>> Hi Folks,
>> Yesteryear's attempt to restrain the mess the IPv4 BGP table has
>> become by setting RIR minimums to /19 or /20 within particular /8's
>> utterly failed, largely because small multihomed end users had no
>> choice but to get /24's from their ISP -- in the middle of the
>> restricted /8's. Though late in the day, proposal 2010-2 largely
>> corrects this grave mistake for new assignments -without- expanding
>> who can introduce BGP routes into the table or how many IP addresses
>> anyone qualifies for. It is a major step forward and I strongly
>> encourage you to stand in support of it at the ARIN meeting next
>> Monday.
>> For your reference: https://www.arin.net/policy/proposals/2010_2.html
>> Regards,
>> Bill Herrin
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