And here's a spreadsheet that implements the formula for amount of time it takes TCP to start filling the available bandwidth for the channel it's using. Hover

And here's a spreadsheet that implements the formula for amount of time it takes TCP to start filling the available bandwidth for the channel it's using. Hover over the cells to see notes about what they mean. The main variables to tweak are RTT and the available channel bandwidth. The answer you're looking for is in cell B5. https://docs.google.com/spreadsheet/ccc?key=0An9tG32cwT8UdFZFOVY3QkFVS005bFVpMHdHR2stVWc#gid=0 https://docs.google.com/spreadsheet/ccc?key=0An9tG32cwT8UdFZ...