yum install iperf on Centos5 or Centos6

iperf是个网络带宽的性能测试工具，但是直接yum install iperf是找不到源的。具体安装方法如下：

yum install iperf on centos5
=======================

wget http://packages.sw.be/rpmforge-release/rpmforge-release- 0.5.2 - 2 .el5.rf.x86_64.rpm
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
rpm -K rpmforge-release- 0.5.2 - 2 .el5.rf.*.rpm
rpm -i rpmforge-release- 0.5.2 - 2 .el5.rf.*.rpm
yum install iperf

yum install iperf on centos6
=======================

wget  http://packages.sw.be/rpmforge-release/rpmforge-release- 0.5.2 - 2 .el6.rf.x86_64.rpm
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
rpm -K rpmforge-release- 0.5.2 - 2 .el6.rf.*.rpm
rpm -i rpmforge-release- 0.5.2 - 2 .el6.rf.*.rpm
yum install iperf

iperf使用示例
on 10.1.74.51

iperf -s

on 10.1.74.76

[ root@xen74v02 db1 ] # iperf -c  10.1.74.51  -B  10.1.74.76
------------------------------------------------------------
Client connecting to  10.1.74.51 ,  TCP port  5001
Binding to local address  10.1.74.76
TCP window size:  16.0  KByte (default)
------------------------------------------------------------
[   3 ]  local  10.1.74.76  port  5001  connected with  10.1.74.51  port  5001
[  ID ]  Interval       Transfer     Bandwidth
[   3 ]    0.0 - 10.0  sec   1.03  GBytes     884  Mbits/sec