IT organizations can no longer manage networks in isolation from the applications they support, requiring a shift from focusing on devices to a focus on performance. But a number of factors complicate the task of ensuring acceptable application performance, including the lack of visibility into application performance. Learn tips to plan, optimize, manage, and control your application performance and improve delivery.
selective process theory
numerous small packets. TCP selective acknowledgment (SACK) improves performance in the event that multiple packets are lost from one TCP window of data. With SACK, the receiver tells the sender which packets in the window were received, allowing the sender to retransmit only the missing data segments instead of all segments sent since the first lost packet. TCP slow start and congestion avoidance lower the data throughput drastically when loss is detected. TCP Fast Start remedies this by accelerating