For TCP session throughputs to reach the full rate of the available bandwidth, the Receiver Window size (RWIN) must be equal to or larger than the Bandwidth Delay Product (BDP).
Calculate BDP as follows: BDP (bytes) = total available bandwidth ✕ round trip time
AA TCPO dynamically sets RWIN toward the network side large enough to fit or exceed the maximum available bandwidth times maximum anticipated delay, therefore achieving max throughput for a specific bandwidth speed. AA TCPO performs automatic adjustment of RWIN based on the various dynamic factors such as available buffers and delays.