stephen at sprunk.org
Fri May 13 10:52:54 EDT 2005
Thus spake "Larry J. Blunk" <ljb at merit.edu>
> I think there are other reasons for considering /56's. Consider,
> for example, university dorms rooms. Should each of them get a
> /48? The University of Michigan has 5793 dorms and 1483 family
> housing apartments (ref --
> You'd need a /35 at a minimum to give everyone a /48 and that
> wouldn't leave much headroom or flexibility in addressing hierarchy.
> Realistically, you probably want to assign a /32.
> Merit provides Internet access for 13 universities and the State
> of Michigan. Based on the above considerations, we asked for a /28
> from ARIN (enough for a /32 for each university and the state). Our
> application was denied, and we only received a /32. What size prefix
> should allocate to the universities (ARIN suggested a /40)? What
> prefix size should we advise them to assign to dorm rooms?
Based on a previous response to me, individual customers within a single
building are apparently not considered "sites". Either way, I'd be
assigning a /64 per dorm building or per floor -- not per room -- unless
ARIN forced me to assign more. From there you can determine what each
university needs (presumably a /48).
Thanks for the info on your application being denied; it's useful to have
real-world examples of policies' effects even if only anecdotal.
Stephen Sprunk "Those people who think they know everything
CCIE #3723 are a great annoyance to those of us who do."
K5SSS --Isaac Asimov
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