Running UDP test appears to hang

[bmah888]

From kennethwebber on August 11, 2010 14:42:19

What steps will reproduce the problem? 1. On Server A /opt/iperf3 --client 10.10.205.13 --port 55525 --udp --debug
2. On Server B /opt/iperf3 --format k --port 55525 --udp --server -V 3. What is the expected output? What do you see instead? ON A:
Connecting to host 10.10.205.13, port 55525

ON B:
Accepted connection from 10.10.24.14, port 37180
Cookie: e47a1dcd-70b4-44b5-9411-e59ade43f579 What version of the product are you using? On what operating system? [root@horoscope opt]# /opt/iperf3 -v
iperf version 3.0-BETA4 (2 Aug 2010) Please provide any additional information below. When I remove --udp it works just fine.

Original issue: http://code.google.com/p/iperf/issues/detail?id=26

[bmah888]

From jdugan.esnet on August 12, 2010 09:21:21

What OS did you run this test on?

[bmah888]

From kennethwebber on August 12, 2010 10:55:02

Linux xxx.xxx.xxx.com 2.6.18-194.3.1.el5PAE #1 SMP Sun May 2 04:42:25 EDT 2010 i686 i686 i386 GNU/Linux

[root@xxxx ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.5 (Tikanga)

[bmah888]

From dduster on September 30, 2010 00:53:00

UDP does not seem to work (TCP works just fine) for the following:

• Ubuntu 9.04 (jaunty): Linux xxx 2.6.18.8-linode22 setting of window size should be explicit #1 SMP Tue Nov 10 16:12:12 UTC 2009 i686 GNU/Linux
• cygwin : CYGWIN_NT-5.1 xxx 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin

This is for iperf version 3.0-BETA4 (2 Aug 2010) .

Following is the command output(s):

-------------- server ------------
$ ./iperf3 -s -p 1111
-----------------------------------------------------------
Server listening on 1111
-----------------------------------------------------------
Accepted connection from 127.0.0.1, port 42747
The client has unexpectedly closed the connection.
-----------------------------------------------------------
Server listening on 1111
-----------------------------------------------------------

-------------- client ------------
$ ./iperf3 -c 127.0.0.1 -p 1111 -u
Connecting to host 127.0.0.1, port 1111
error: Unable to read from stream socket: Connection refused

---

[bmah888]

From bltierney@es.net on March 12, 2013 15:29:42

Status: Fixed