Our business is connected to various outside facilities across town via fiber. We lease the fiber, and have Cisco ASA (or PIX) firewalls on each end with a VPN tunnel connecting our private networks.

In my last column I showed you how adjusting TCP window size settings can dramatically affect network throughput. In this column I'll show you how to download and install the free Iperf network ...

C:\>iperf -c 192.168.0.1 -w 64KB -p 5002 -u ----- Client connecting to 192.168.0.1, UDP port 5002 Sending 1470 byte datagrams UDP buffer size: 64.0 KByte ...

Jperf/Iperf Network Test JPerf is a simple performance and scalability testing framework for Java. Think of it as JUnit for performance tests. JPerf can be used programmatically or from the command ...