From owner-freebsd-advocacy  Fri Jul 31 01:41:54 1998
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To: Adrian Filipi-Martin <adrian@ubergeeks.com>
cc: Open Systems Networking <opsys@mail.webspan.net>,
        "Advocacy Mailing List (E-mail)" <freebsd-advocacy@FreeBSD.ORG>,
        Rick Siple <RickSiple@mpainc.com>
Subject: Re: CRL Network Services Carries the Traffic of the Record-Breaking W alnut Creek CDROM FTP Site 
In-reply-to: Your message of "Fri, 31 Jul 1998 02:11:30 EDT."
             <Pine.BSF.3.96.980731020156.2065H-100000@lorax.ubergeeks.com> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Fri, 31 Jul 1998 01:37:36 -0700
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>	Very nice.  I was looing at the stats on the emsphone page and it
>shows 6086.4 kB/s as the current daily average bandwidth.  
>
>	(6086 * 24 * 3600) / 1024 = 513506 kB/day
>
>	Are the stats on emsphone this inaccurate, or is there that much
>more traffice aside from ftp transfers?  

   Reprint of a personal reply I made to Greg Lehey on the same question:

   Firstly, I should have said "averaged during the day around 6.5MB/sec".
The traffic levels at night were somewhat lower - about 4.5MB/sec. Second,
the "417GB" figure is the total bytes for files that were successfully
transfered. It does not include TCP/IP packet overhead, packet retransmits,
data that is not part of the files, or incomplete/aborted file transfers.
This all adds up to 20% or more of overhead.

-DG

David Greenman
Co-founder/Principal Architect, The FreeBSD Project

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