Comment Re:UDP ... (Score 2) 151
At that point you don't need the reliabilitiy and retransmission features of TCP. Once you stack the layers up, TCP will take care of that anyway, without running it over TCP again. Think IP: unreliable datagrams; you put TCP on it and presto: reliable, ordered, everything. Run a VPN, and you do it over UDP, and end up with something like IP -> UDP -> TCP, and then TCP again does its thing, without a care in the world about the layers below. Same principles apply with this new things too. If your underlying layers are flaky, you can't make them less flaky by adding more TCP to your cake. In effect, you make them even more flaky as each TCP layer tries to do its own retransmission and floods your line.