Subject: Re: RTL8169 hw IP4CSUM_Tx workaround
To: Izumi Tsutsui <>
From: Kurt J. Lidl <>
List: tech-kern
Date: 10/26/2006 13:53:13
On Fri, Oct 27, 2006 at 01:01:51AM +0900, Izumi Tsutsui wrote:
> wrote:
> > Lots of TCP ACK for example. 
> How can I produce such packets?

I would assume that any large stream of TCP data transfers would
generate lots of TCP ACK packets.

If you have ttcp installed, you can do:

recv_host# ttcp -b 65536 -l 16384 -s -r

send_host# ttcp -b 65536 -l 16384 -s -n 10000 -t recv_host

Where recv_host and send_host are two machines that will communicate
over the network interface you want to test...  You can increase the
"-n 10000" parameter to send more data packets...