Re: Packets dropped !!!
This means that packets were dropped from the logging. Not that the
packets were not sent on the wire. Due to the high CPU utilization of
Iperf it is hard to listen to all the traffic with TCPDump which is also
on the high side of utilization especially if you are dumping to disk or
gziping or other entensive tasks. If Iperf reports no lost datagrams then
there were no lost datagrams between the two copies of Iperf running not
that some other app saw them all. When in doubt believe Iperf.
Kevin
On Sun, 22 Feb 2004, Massimo Onorati wrote:
> I am using Jperf measurement tool in UDP mode, it shows lost datagrams
> = 0 but if I use the following command :"tcpdump -i eth2" the system
> tells me : "1020 packets dropped by Kernel". Why ?
>
> Thanks in advaqnce.
>