SmartSniff shows the calculated speed of each TCP connection.
There are 2 new columns in SmartSniff utility: 'Last Packet Time' and 'Data Speed'
The 'Last Packet Time' column displays the date/time of the last packet captured for the specified connection.
The 'Data Speed' column displays the calculated speed in KB/Sec. This speed is calculated by using the 'Data Size' value and the number of milliseconds elapsed since the first packet of this connection arrived.