The TCP Proxy Buffer

Thanks a lot, then all the traffic from backend server will be accumulated in Proxy Buffer (until Proxy Buffer High is reached) - Am I right?

As soon as BIG-IP receives ACK for part or all data send, appropriate amount of data will be passed from Proxy Buffer, let's say client send ACK for 4KB then 4KB will be send from Proxy Buffer to Send Buffer, of course assuming that client is still advertising 8KB window.

If with ACK client will send window 16KB then I assume 12KB can be moved from Proxy to Send (16KB widow - 4KB of unacknowledged data) - is that more or less correct?

Piotr