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TCP Window Scaling can only be used if both sides support it. Thus when it is present as an option in both SYN packets.
Otherwise the window is limited to 64k.
is this normal ?? or it might cause bandwidth congestion ?
That depends on the latency. In a LAN environment this may not be an issue.
The bandwidth-delay product (BDP) determines the maximum throughput. For more information see: https://en.wikipedia.org/wiki/TCP_window_scale_option
TCP Window Scaling can only be used if both sides support it. Thus when it is present as an option in both SYN packets.
Otherwise the window is limited to 64k.
is this normal ?? or it might cause bandwidth congestion ?
That depends on the latency. In a LAN environment this may not be an issue.
The bandwidth-delay product (BDP) determines the maximum throughput. For more information see: https://en.wikipedia.org/wiki/TCP_window_scale_option