Why does packet loss seriously hurt application performance over the WAN? How do we address it?

TCP was never optimized for high-bandwidth WANs or interactive applications over the WAN. Packet loss has the greatest impact on the applications performance  over the WAN, by design. Why is packet loss such a killer? There are many reasons, most having to do with the nature of how TCP was designed especially how TCP does congestion control/congestion avoidance. The […]