nanog mailing list archives

Re: standards for giving out blocks of IP addresses


From: Valdis.Kletnieks () vt edu
Date: Tue, 12 Jun 2001 16:37:32 -0400

On Tue, 12 Jun 2001 16:17:01 EDT, shsu () HydroOne com  said:
Hi, is there a standard or a practice on how much IP addresses an ISP should
provide to his/her client given that this client has bought only 2Mb of
bandwidth and this client is an ISP?

Umm.. don't bother.  Let's think this through.  2Mbits/sec of bandwidth
will only sustain about 40 56KB modems doing a simultaneous download.

Even adding in think time and the like, a /24 should be plenty wide enough.

The *BIG* question is how the ISP intends to make any money at that scale.
Figuring even a 10X overcommitment, that's 400 customers at $20/mo or so,
for an inbound cash flow of only $8K/month, with which they get to pay their
bandwidth charge, their tech support, and everything else.

I wish them luck.
-- 
                                Valdis Kletnieks
                                Operating Systems Analyst
                                Virginia Tech


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