Andrew Ball wrote:
...Also, over 90% of TCP traffic goes through mainframes...
I think it's reasonably safe to call the bluff on that statistic.
Probably well upwards of 30% of all TCP traffic is HTTP these days*, and
last time I checked Apache accounts for around 62.52% of all web
servers, Microsoft products another 30.13%, together around 93%**. Just
from looking at the rough numbers there, even if I'm high balling the
HTTP numbers (probably not by much, if at all), then that's 25%+ that
isn't touching a main frame at all. The traffic goes straight from a
client, likely through some appliance NAT router of theirs, into a cable
or DSL modem, through an access device at the other end onto Ethernet,
through a crap-load of routers, and eventually to a switch and some
random unix/ms server*** on the other end, and back again. Another
interesting argument is that I've seen a lot of reports lately that p2p
traffic is consuming crazy percentages of all internet traffic these
days, some say as high as 60 to 75%. I think those are exagerated
numbers, but I'd believe 40% or more. I am not even aware of any p2p
apps for OS360, or anything even resembling a mainframe. :)
Aaron S. Joyner
* - Alert: Conservative wild flaming guess. Couldn't easily find any
trustworthy statistics here.
** - http://news.netcraft.com/archives/web_server_survey.html
*** - Don't even try the "these are virtual instances on z-series
mainframes" angle, no way there's any sizable percentage of websites on
such a platform, see Netcraft again.
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