> Correct, beside the maximum limit of 65,353 in detail: With TCP Window
> Scaling (RFC 1323) you can use values up to two Gigabytes. 
I read 1GB

 From RFC1323:
"Since the max window is 2**S (where S is the scaling shift count) times 
at most 2**16 - 1 (the maximum unscaled window), the maximum window is 
guaranteed to be < 2*30 if S <= 14. Thus, the shift count must be 
limited to 14 (which allows windows of 2**30 = 1 Gbyte). If a Window 
Scale option is received with a shift.cnt value exceeding 14, the TCP 
should log the error but use 14 instead of the specified value."
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