okaven
join:2001-12-02
New York, NY
|  Frame sizes
I don't know where in the thread it started, but it is by no means correct that network traffic passing through consumer routers is comprised of only 1518-byte packets.
To show that I am not pulling this out of my hat check out this URL for a Sprint evaluation of over 7 TB of broadband customer data.
»www.cs.columbia.edu/~hgs/interne···fic.html
Quote:
- - - - - - - -Quote- - - - - -
Packet Size Distribution
All numbers are percentages
Downstream Upstream
---------- --------
0 - 64 14.68 58.49
65 - 127 13.87 29.73
128 - 255 7.25 1.72
256 - 511 6.44 3.98
512 - 1023 13.59 3.37
1024 - 1518 44.17 2.70
- - - - - END Quote - - - - - -
VoIP and HTTP acknowledgements (syns and acks) are typical examples for traffic under 512-byte in size.
I am not denying that larger packet sizes make a good chunk of the traffic, but especially looking at upstream traffic things look a little different.
So, since Internet traffic is so diverse, I think it does not make sense to base any evaluation on one single packet size.
Oliver Kaven
----------------------------------------
Oliver Kaven
Project Leader, Network Infrastructure
PC Magazine Labs
oliver_kaven@ziffdavis.com
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