Congestion avoidance.

Tue Feb 20 11:06:47 PST 2001 — Congestion avoidance. A colo site had incorrect permissions on some of their directories, which prompted scurrilous ruffians to upload DIVX files for illicit distribution. The resulting demand caused saturation on our T3’s, with as much as 3% packet loss on our Internet circuits. While this does not seriously interfere with ordinary use of TCP/IP, it does cause TCP to enter “congestion avoidance”, which means TCP streams slow down to prevent packet loss. We have corrected the situation; the saturation has stopped, and traffic is now moving normally. Please visit news:sonic.net for questions about congestion avoidance. -Scott, Matt, Rob, and Mike

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