Fancy Gap HTRN

Bandwidth Requirements Calculator

Data volume (MB) Time Window (hours) Compression Ratio WAN Bandwidth (Mbps) Latency (ms) TCP window size (KB) TCP session throughput (Mbps) TCP Sessions required Bandwidth requirement calculation In order to estimate the bandwidth needed the following calculation was used: T = (d / t) * (8 bits/Byte + 2 bits/Byte overhead) * (1 hour / 3600) T = Sustained WAN Bandwidth required to transfer data in Mbps d = Amount of data to be transferred in Mbytes t = Maximum amount of time allotted for transfer in hours TCP Throughput calculation In order to estimate the throughput, of a single TCP flow or session, the following calculation was used: T = (w / l) T = Maximum TCP session throughput in Bps w = TCP stack window size in bytes l = Roundtrip network latency in seconds