The TCP-over-TCP Tax: An Architectural Autopsy

IT InstaTunnel Team Published by our engineering team The TCP-over-TCP Tax: An Architectural Autopsy The TCP-over-TCP Tax: An Architectural Autopsy Your tunnel isn’t slow because of your ISP; it’s slow because your packets are stuck in a “double-retransmission” loop. To a systems engineer, high-speed fiber feels like a dial-up connection the moment you wrap a TCP stream inside another TCP stream. This phenomenon, known in networking circles as the TCP-over-TCP Tax (or more dramatically, the TCP