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This is interesting, because on our side of the world, when I do an
analysis, I can see that mail is about 30% of the TCP traffic, with the
web being about 40% of TCP traffic. I guess we do not have the same needs over very slow links... Cheers stanislav shalunov wrote: Fred Baker <fred@xxxxxxxxx> writes:That is the ISP's choice. As a percentage of total volume, SMTP/ESMTP is a small proportion of total traffic, or so please I can read sample measurements (like http://www.caida.org/dynamic/analysis/workload/sdnap/0_0_/ts_top_n_app_bytes.html) would lead me to believe.I can confirm this for a different network. Email (which includes [E]SMTP, POP, IMAP, versions of these over TLS, and such) comprises about 0.5% of the traffic on Abilene. For comparison, HTTP is about 15%. (The ratio is almost exactly the same as in the plot Fred cites.) Even during weeks when there is an unusually large amount of SMTP traffic because of email worms, we're still talking about 2% of traffic being mail. http://netflow.internet2.edu/weekly/ -- Franck Martin ICT Specialist franck@xxxxxxxxx SOPAC, Fiji GPG Key fingerprint = 44A4 8AE4 392A 3B92 FDF9 D9C6 BE79 9E60 81D9 1320 "Toute connaissance est une reponse a une question" G.Bachelard |
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