TIME_WAIT maybe? Just a guess. http://www.developerweb.net/forum/showthread.php?t=2941
2008/7/11, Jones, Jeff L (PNB Engineering Lab) <[EMAIL PROTECTED]>: > > 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? > > ------------------------------------------------------------------------- > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! > Studies have shown that voting for your favorite open source project, > along with a healthy diet, reduces your potential for chronic lameness > and boredom. Vote Now at http://www.sourceforge.net/community/cca08 > _______________________________________________ > Iperf-users mailing list > Iperf-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iperf-users > > ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Iperf-users mailing list Iperf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iperf-users
