Getting a grip on network performance numbers is one of the most difficult tasks for network managers. Unlike many information technology statistics such as disk space utilization and available memory ...

Many companies are upgrading their wireless networks to 802.11n for better throughput, reach, and reliability, but getting a handle on your wireless LAN's (WLAN's) performance is important to ensure ...

Scott Reeves demonstrates the use of iperf, which provides basic information on throughput, packet loss, and jitter to help you troubleshoot UDP and TCP issues. There are a few tools available to ...

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.

As virtualized infrastructures get more complicated, sometimes you need a way to troubleshoot things quickly, in simple terms above the infrastructure. One of the areas I've looked closely at is ...

When my internet starts crawling, I don't just restart my router and hope for the best. I grab these three network diagnostic tools and systematically work through my network to find the real culprit.

The final part of this three-part series shows you not only how to disable the firewall using netcat and iperf, but how to test Apposite's new virtual WAN emulator. This is the third and final article ...

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 ...