Re: [Iperf-users] Iperf TCP Hangs

2012-07-17 Thread Aaron Brown
Hey Vignesh, On Jul 17, 2012, at 4:59 AM, vignesh venkateswaran wrote: > I tried your suggestion. I guess you are right. This was the output when I > added -i 2 to the client side command. > > root@OpenWrt:/# iperf -c 192.168.1.20 -i 2 -o root/tcp.txt > ---

[Iperf-users] Iperf TCP Hangs

2012-07-17 Thread vignesh venkateswaran
I tried your suggestion. I guess you are right. This was the output when I added -i 2 to the client side command. root@OpenWrt:/# iperf -c 192.168.1.20 -i 2 -o root/tcp.txt Client connecting to 192.168.1.20, TCP port 5001 TCP window size

Re: [Iperf-users] Iperf TCP Hangs

2012-07-16 Thread vignesh venkateswaran
I tried your suggestion. I guess you are right. This was the output when I added -i 2 to the client side command. root@OpenWrt:/# iperf -c 192.168.1.20 -i 2 -o root/tcp.txt Client connecting to 192.168.1.20, TCP port 5001 TCP window size

Re: [Iperf-users] Iperf TCP Hangs

2012-07-16 Thread Aaron Brown
Hi Vignesh, The way iperf works is the client makes a tcp connection to the server, and sends 10 seconds worth of data. However, the client-side kernel is buffering that data up, and sending it, and, in the case of loss, resending it. If you have a very lossy connection, it may take far more th

[Iperf-users] Iperf TCP Hangs

2012-07-16 Thread vignesh venkateswaran
I am using Iperf 2.0.4 on linux 2.6.32.10 loaded in two Mikrotik Routerboards 411AR. I tried to run iperf in these two boards through serial connections from the boards to my laptop via minicom and measure the 802.11 performance. When I run iperf tcp test setting one board as server and another as