Tag
congestion-window
- May 11, 2026 The Effective Window: Congestion Window, Receive Window, and Buffers Why three independent limits govern how much a TCP sender may have outstanding, how the congestion window grows and collapses, and which limit binds in practice. networking
- Jan 21, 2025 Additive Increase, Multiplicative Decrease, and the Fairness of the Sawtooth Why the increase is additive and the decrease is multiplicative, how the resulting sawtooth converts loss rate into throughput, and where the convergence argument stops holding. networking
- Sep 22, 2024 Slow Start: Exponential Probing and the Initial Window Problem A new connection has no estimate of path capacity, so it doubles its window each round trip until a threshold or a loss. The cost is a burst that a small buffer cannot absorb. networking
- Aug 21, 2024 Ack Clocks and the Congestion Window: How a Sender Infers Available Capacity Why a TCP sender measures the path with returning acknowledgements instead of a timer, how the congestion window combines with the receive window, and what a stalled clock does to the estimate. networking