[arin-ppml] Opposed to 2010-9 and 2010-12

[Owen DeLong]

On Oct 10, 2010, at 5:37 AM, Scott Leibrand wrote:

> 
> On Oct 10, 2010, at 8:27 AM, Owen DeLong <owen at delong.com> wrote:
> 
>> 
>> On Oct 10, 2010, at 1:20 AM, Joe Maimon wrote:
>> 
>>> 
>>> Is there any reason a large ISP might want more than one 6rd scheme?
>>> 
>> Not that I can think of, and, the real problem with 6rd is that it doesn't matter what
>> size ISP you are... From the tiniest to the largest, they all consume the same
>> messed up prefix size for the same number of end bits to the end site.
>> 
>> So even a tiny ISP with 100 customers, if they want to give /56s to their end sites
>> will still consume 56-32 = /24.
> 
> Well, if you only have one v4 prefix, you don't need 32 bits.  That only helps in the smallest cases though. 
> 
> -Scott

While I haven't done the crawl through the routing table to be sure, I would posit that the number
of ASNs advertising a single prefix is probably less than 1%.

If someone with more time on their hands cares to validate this, it would be an interesting number
to have.

Owen