[37915] in North American Network Operators' Group
Re: EMAIL != FTP
daemon@ATHENA.MIT.EDU (Alexei Roudnev)
Fri May 25 15:56:25 2001
Message-ID: <039c01c0e53d$8aefa1e0$9eb431c6@oemcomputer>
From: "Alexei Roudnev" <alex@relcom.EU.net>
To: "Robert Blayzor" <rblayzor@thebiz.net>,
"Craig Partridge" <craig@aland.bbn.com>, <nanog@nanog.org>
Date: Fri, 25 May 2001 10:10:03 -0700
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> >
> > But for a little extra SMTP handshaking at the start, there is no
> > efficiency
> > difference in transfer rate between SMTP and FTP. Probably the same is
> > true for HTTP though I've not looked.
>
> I think you missed the fact that sending files via SMTP is incredibly
> inefficient. Any files sent via SMTP have to be encoded which can balloon
> the transmission up 30%+. That is an incredible waste of bandwidth on a
After all, nmodep compress it back to the original size while transferring. The
rate loss is 5 - 10%, not 30 - 40.
For LAN, this volumes are not large (1 - 2 Mb).
> 10MB file. Also, remember that SMTP usually relays, so the message is
> bounced between 1-8 servers along the way (or more), more bandwidth and
> resources wasted. *sigh*
>
> --
> Robert Blayzor IP Network Engineer, BOFH BiznessOnline.com, Inc.
> rblayzor@thebiz.net noc@thebiz.net http://www.thebiz.net/
>
> FreeBSD, Putting the 'Operating' back into OS! -- http://www.freebsd.org/
>
>
>
>
