TCP retransmit rate elevated

TCP retransmit ratio (retransmits / segments sent) over the most recent snapshot interval exceeds 2%, gated so the ratio only fires at meaningful traffic volume: at least 1.0 retransmits/sec AND an implied segment rate of at least 50/sec. Above 1% commonly impacts performance; above 5% significantly degrades throughput. The volume gate prevents false alarms on quiet hosts where a handful of retransmits over few segments produces a misleadingly high ratio.