DPI - You Can Try it at Home

 

BitTally "network traffic monitoring software with state-of-the-art protocol recognition engine based on Deep Packet Inspection technology (DPI). Over 100 application protocols are currently recognized, including BitTorrent, eDonkey, FTP, HTTP, SMTP, POP3, SIP, Skype, and many more. Even encrypted BitTorrent, Skype, etc. connections are recognized BitTally Standard Edition is very affordable, BitTally Lite Edition is FREE with no strings attached"

See product description - here.
 

From the FAQ: "Can it shape traffic? No. Monitor is a passive listener (although it can inject forged TCP RST packets and HTTP redirects)" .

You may remember the former feature from the Comcast-FCC (Sandvine) case.