When there is no synchronization between the sender and receiver regarding capacity of the flow of data or the size of the packet, the window syndrome problem is created. When the silly window syndrome is created by the sender, Nagle's solution is used. Nagle's solution requires that the sender sends the first segment even if it is a small one, then the sender waits until an ACK is received or a maximum sized segment (MSS) is accumulated.
When the silly window syndrome is created by the receiver, David D Clark's solution is used. Clark's solution closes the window until another segment of maximum segment size (MSS) can be received or the buffer is half empty.
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