網際網路 TCP問題

Host A is sending an enormous file to Host B over a TCP connection. Over this connection there is never any packet loss and the timers never expire. Denote the transmission rate of the link connecting Host A to the internet by R bps. Suppose that the process in Host A is capable of sending data into its TCP socket at a rate S bps,where S=10R . Further suppose the TCP receive buffer is large enough to hold the entire file,and the send buffer can hold only one percent of the file. What would prevent the process in Host A from continuously passing data to its TCP socket at rate S bps ? TCP flow control ? TCP congestion control ? Or something else ? Elaborate.

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