Save yourself some headaches!
One of the more complicated steps when troubleshooting a network or application performance problem is capturing and reading traffic off the wire. We’re in a switching world today, which makes forwarding network traffic to an analyzer difficult. Traffic is usually isolated between two ports on a switch, leaving the network analyzer blind if it is plugged into a regular switch port.
Until now, there have been three basic ways to capture traffic in a switched environment, and each has it’s pros and cons:
1. Span/Mirror port on switch
2. Tap inline between server and switch or on key link
3. Hub on client end of connection
These three methods have been used industry-wide to collect traffic on a switched system.
Now we have a fourth way.