On 6/8/13 4:17 AM, Owen DeLong wrote:
2. Comcast only appears to have a /29 and a /28 (2001:558::/29, 2601::/28). That's only
1.5M /48s, and they have about 10x that many customers. They likely can't use /48 plus
semantic prefixes, because if ARIN doesn't accept "semantic prefixes" as using
space efficiently (and word from ARIN on this thread seems, well, negative on the
matter), then they won't be able to get more space from ARIN. That means that there is a
fundamental tension between using semantic prefixes and giving more address space to
customers.
It also means that Comcast has a dramatically undersized allocation and will
most likely be depriving their customers.
Wierdly, I know them not to been fools. one observation that can be
made about larger assignments made at a later time is that:
A. they have been at this a long time and thinking/application has need
a long time in coming.
B. They're managing their resource assignment.
Owen
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