Member Avatar for dineshcbe

I need to calculate the network bandwidth in LAN. But i don't have any idea about it .Help me how to calculate it.

Thanks in advance.

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Member Avatar for vijayan121

Send a large file across the network and measure the average Round Trip Time.

TCP Throughput = TCP Recieve Window Size / Round Trip Time

eg. if TCP Recieve Window Size is 64K, RTT is 100 ms,
TCP Throughput = 64K * 8 / 0.1 = 5242880 bps = 5.2 Mbps

Your bandwidth = TCP Throughput attained at the optimal TCP Recieve Window Size.

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