nanog mailing list archives

Re: standards for giving out blocks of IP addresses


From: Valdis.Kletnieks () vt edu
Date: Tue, 12 Jun 2001 20:52:59 -0400

On Tue, 12 Jun 2001 16:32:14 PDT, Josh Richards <jrichard () cubicle net>  said:
* Valdis.Kletnieks () vt edu <Valdis.Kletnieks () vt edu> [20010612 13:03]:
Umm.. don't bother.  Let's think this through.  2Mbits/sec of bandwidth
will only sustain about 40 56KB modems doing a simultaneous download.

You've got an interesting view of the $20/mo. retail dial-up market 
economics.  Very few access providers have end-users on dial-up with such 
thriving Internet habits (though each access providers' customer base 
differs).

OK.. I'll admit it - personal viewpoint *may* be a bit slanted, we've been
just a bit ahead of the curve - bev.net launched about a decade ago across
the hall from my office.

http://www.bev.net/project/brochures/about.html

The local people are on-line, big-time, real-time, all the time.  At least
locally, we need to over-provision compared to what a lot of other people
are reporting.

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

I can't contest this since the original poster provided insufficient 
information.  A single /24 happens to be a default for some providers of T1

Well.. the question was how much space to sell to *another ISP*.  Now, we've
seen several numbers that all seem to agree that several racks of modems will
saturate the 2Mb link to the customer ISP for a /24 or maybe a /23 worth
of dialup modem pool space.

If the new startup ISP is providing colocation, expect that either they
have colocated a lot of idle hardware, or that they'll saturate their 2Mb
even faster.  I'd expect a /24 worth of webservers should saturate an
uplink even faster than a /24 worth of terminal servers.

You've apparently not paid much attention to how this industry got started
have you?  Though, they will need the luck...I'll grant you that... :-)

I *was* paying attention - I was there. ;)

Just some days I forget there's people still trying to climb onto the
bandwagon we're desperately trying to get *off*. ;)
-- 
                                Valdis Kletnieks
                                Operating Systems Analyst
                                Virginia Tech


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