What OS are you using ? Linux Netstat (and sysstat, iptraf ) will all report a variety driver level statistics. Windows has similar reporting tool netstat and perfmon.
For UDP, you should really stick to small message segments of 1400 bytes. Messages larger than that are fragmented into multiple segments are subject to being dropped by the receiver ( The client always sends a UDP message). ________________________________ From: Randy Buck [mailto:[email protected]] Sent: Tuesday, April 27, 2010 4:44 PM To: Jon Dugan Cc: iperf-users Subject: Re: [Iperf-users] UDP not sending at full rate I am not tweaking anything. I need to run in UDP because I am trying to track packet loss due to collisions. This brings me to my next question: is it possible (and can anyone verify that) the link-layer is ack'ing packets, and therefore resending some. I know this is in the 802.11 spec.
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