[arin-ppml] IPv6 /32 minimum for extra-small ISP

Ted Mittelstaedt tedm at ipinc.net
Thu Apr 15 13:26:47 EDT 2010

On 4/14/2010 3:39 PM, Milton L Mueller wrote:
> Thanks. Real data. Seems like a useful contribution to the discussion. Not sure why the questions leading to this point generated such hostility, nor why it had to be preambled with "snarky" stuff.
> So the "every router" statement has now dwindled to "most large ISP routers and about half of small ISP routers, which together compose about 10% of the world's routers." (Could be a misreading of the data because we don't know whether Randy's #tested is representative of the proportion in the total population.)

Ah, yes, but without the routers in that 10% we wouldn't have
an Internet to even be discussing.  They are more important
than the rest of the 90%.


PS  If you include the small consumer routers (Linksys, etc.)
then 10% is probably 9.9999999% too high.

> And the interpretation you draw, which I agree with:
>> those that add prefixes to the DFZ are probably not sharing
>> equally in the costs associated with the additional prefixes
> Yeah, we all knew that, but it is better to have a finer understanding of the specific disjunction in the distribution of costs and benefits, which is well known at least in my field as the motor of policy conflict and change...this could lead to a better understanding of how the associated tragedy of the commons has a specific structure and dynamic and what policy measures would best address it.
> --MM
>> -----Original Message-----
>> 		     # tested 	default 	default-free 	mixed
>> stub 		24,224 	77.1% 	19.3% 		3.6%
>> small ISP 	1,307 	44.5% 	42.2% 		13.3%
>> large ISP 	246 		17.1% 	60.6% 		22.3%
>> You could probably come up with some kind of model to create an
>> estimate of how many routers that represents.
>> When I look at this data it seem to me that it supports the general
>> hypothesis those that add prefixes to the DFZ are probably not sharing
>> equally in the costs associated with the additional prefixes.
>> Whoops, there she Blow......
>> :)
>> --
>> ===============================================
>> David Farmer               Email:farmer at umn.edu
>> Networking&  Telecommunication Services
>> Office of Information Technology
>> University of Minnesota
>> 2218 University Ave SE	    Phone: 612-626-0815
>> Minneapolis, MN 55414-3029   Cell: 612-812-9952
>> ===============================================
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