This is about what I would expect but as others haev noted does not include jumbos. This says that the majority of packets are session control and open/close sequences on the one side and big, fat, WRED eligible data packets on the other side. This is consistant with the trends of youtube, "high resolution" video streams, mp3 type traffic, and web pages that just can't seem to understand that a 150k jpeg looks just as good on an index as a 2 meg jpeg. I don't think these figures are likely to change signifcantly in the near future until we start seeing jumbo frames available from user to server, not simply somewhere inbetween. It might be interesting to see what of the other sizes are the final packet in a data transfer before close vs other types of data. -Wayne On Tue, Jul 15, 2008 at 05:10:27PM -0700, Darryl Dunkin wrote:
This is all from netflow. The results are from two different routers.
IP packet size distribution (43046M total packets): 1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480 .000 .382 .077 .043 .022 .012 .011 .006 .007 .004 .004 .005 .003 .003 .003
512 544 576 1024 1536 2048 2560 3072 3584 4096 4608 .005 .002 .007 .021 .375 .000 .000 .000 .000 .000 .000
IP packet size distribution (54192M total packets): 1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480 .001 .418 .052 .034 .017 .008 .045 .006 .010 .004 .003 .005 .003 .004 .005
512 544 576 1024 1536 2048 2560 3072 3584 4096 4608 .013 .003 .011 .036 .311 .000 .000 .000 .000 .000 .000
-----Original Message----- From: Sean Hafeez [mailto:sah.list@gmail.com] Sent: Tuesday, July 15, 2008 16:45 To: nanog Subject: Avg. Packet Size - Again?
Most of the data and studies I have found on this topic are a bit out of date.
I would be interested in find out what the average packet size people are seeing on their backbones is at this point and time? Also for those in the DC space what is average packet size you are seeing for web farm traffic (outbound)? Yes I know there are 1000's of answers and different possibilities in setups so please no, "this is a dumb question". I am well aware of all the variables involved in this. I am just looking for some data points that come from a wide degree of sources.
Is this data even something that you track and if so why?
Thanks! Sean
--- Wayne Bouchard web@typo.org Network Dude http://www.typo.org/~web/