TCP/IP test

Testing TCP transfer speed between two hosts

Purpose

A test program to measure TCP/IP transfer speed between two hosts with a given data buffer size.

Method

On a target host we start a program without options which waits for communication. On the other host the same program is started with options defining data packets size, number of packets to send and a target host. We get information about the speed of connection between the hosts.

To use tcptest test program you should:

• Copy GNUmakefile and tcptest.cpp form /afs/cern.ch/rd45/tests/tcp to a new_directory in which you will run test program.
• Compile the program (gmake) on each host if the platforms are different. If they are the same compile on one host. Program creates new_directory/$OS for a given platform in which executable of the program is hold (tcptest).
• Start the program without options on the target host (tcptest).
• Start a program on the second host with options: tcptest
  -ln - data packet size n*1KB,
  -pn number of packets n*1000,
  host target host.
  For example tcptest -ln 10 6 rsplus05.
• If the program runs successfully you get communication speed.