Help Scripts

In this section some help scripts are described that are available to manage the network tests. In general a Secure-Shell is used to run scripts at remote hosts to start the network tests or to collect data from previous tests.

There are a.o. the scripts listed and described below for automatic (remote) execution available.

start_iperf_server

Start an unique Iperf server just before a performance test and store the output. Some required information is reported back via Standard Output to be read by stop_iperf_server.

This script is started at remote hosts by the sync_tcp_udp script.

stop_iperf_server

Stop the Iperf server, using the information obtained by a previous run of start_iperf_server. Obtain also the server output.

This script is started at remote hosts by the sync_tcp_udp script.

user_netserver

Start a Netperf netserver command at an unique port, using an unique log file, and report back the port ID used.

This script is started at remote hosts by the sync_tcp_udp script.

sync_remote_host

Start commands as synchronously as possible at remote hosts using a Secure-Shell.

• Synchronised implies here that the remote hosts are notified to continue only after from all hosts a "running client" notification was received.
• This protocol is handled at the remote clients by the sync_remote_client script.

snmp_sampler

Get and / or store SNMP data. Config files can be used to determine the SNMP counter information. The snmpget command is used to query the SNMP data.

This script is started at remote hosts by the sync_tcp_udp script.

sync_tcp_udp

Start multiple TCP and UDP tests between various hosts, using the sync_remote_host script. Optionally interface SNMP data, obtained before and after the tests with the snmp_sampler script, can be stored.

tcpdump_iperf

Start a combined tcpdump / iperf test generating session at source and destination hosts. The data are stored in appropriate files.

The help scripts tar-gzip archive can be downloaded from this site. See in this archive the README file for a more precise description and the INSTALL file for installation instructions.