I'm running iperf 1.7.0.
I've got a layer 2 network with a windows XP server, an AP (connected via a
switch) and a windows XP wireless client.
I'm changing the setup of the AP and trying to use iperf to validate the
connection between the client and the network.
My windows server (113.1.128.43) is running an iperf server via:
iperf -s -I 1 -p 5001 -l 8k -t 10
The server is launched prior to any test and is assumed to be running
throughout my testing as I launch client sessions against it.
My client is a windows XP that is dual homed, ehternet (113.1.128.37) and
wireless (113.1.128.38). I telnet to the ethernet interface of the client and
launch iperf on the wireless interface via:
iperf -c 113.1.128.43 -B 113.1.128.38
I wait, read the results and log off.
I then change some parameters of the AP, wait for the client to reassociate (I
validate that is has) and, after 1-3 minutes, telnet into the client and launch
another iperf just as before.
The first iperf run works correctly, but the second one bombs with this
returned:
Connect failed: Address already in use
---------------------------------------
Client connecting to 113.1.128.42, TCP port 5001
write1 failed: Transport endpoint is not connected
Binding to local address 113.1.128.38
write2 failed: Transport endpointis not connected
.
.
.
<reports 0 throughput>
I've tried disabling and re-enabling the client wifi adapter (via telnet and
DEVCON), I've tried using a ping to verify the connection, I've tried waiting
for up to a minute between runs, and I've tried combinations. Most of the time
these actions do not make for a successful second run, but sometimes they do.
Any ideas?
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