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Re: $10k per BGP prefix? (was Re: Level 3 BGP Advertisements)
From: William Herrin <bill () herrin us>
Date: Wed, 29 Aug 2012 17:32:55 -0400

On Wed, Aug 29, 2012 at 4:55 PM, Jay Ashworth <jra () baylink com> wrote:
That's very poor practice. Each announcements costs *other people* the
better part of $10k per year.

That sounds ... really really big to me, Bill.  Do you have a source
for that cust-accounting number?

Hi Jay,

The "better part" of $10k. It's been several years since I refreshed
the source numbers but the formula for the estimate and what were then
the source numbers are documented at
http://bill.herrin.us/network/bgpcost.html

Also note that was for IPv4 announcements. I didn't cost IPv6
announcements but it looked like they were roughly twice the price.
That may or may not still be true depending on how the switching
engines are built these days. My guess is: no change.

And yes, it is a really big number. At the time it meant that roughly
$2B of the annual worldwide economy (something like 2/1000ths of a
percent) was attributable to the BGP prefix count.

Regards,
Bill Herrin


-- 
William D. Herrin ................ herrin () dirtside com  bill () herrin us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004


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