fping to test wi-fi roaming

Today one of the other SEs in my company and I were talking about our strategies and methodologies we use for our larger wi-fi demos (e.g. one of his last big wi-fi demos in Beijing could support 100K subscribers).  When talking about cool ways to ping all the units continuously to show no glitches in roaming, I gave him this example as I often use.

fping 192.168.1.100 192.168.1.101 192.168.1.102 -c -D -L c:\path\to\file.txt

With this command, you can ping devices continuously with a time stamp, and when you’re done, you can simply control-c to end the parallel pings and have the file.txt as material for later review.

(The results may not be as customer facing as you might like, but when you need to quickly test something for you own sanity, the command is quite useful!)