Dynamically Avoiding the Substantial Throughput Penalty of FRR

Abstract

Disclosed is a system for dynamically suppressing Fast Retransmission and Recovery (FRR) on high-latency Transport Control Protocol (TCP) connections with low ongoing packet loss. This system measures the relative rate of recent packet loss and adjusts the suppression of FRR based on the measured rate. Provided that the rate of actual packet loss is low, high-latency TCP connections can benefit significantly from suppressing FRR.