glossary:bit_time
Bit time
Bit time is a quantity that can be useful for simplifying the calculation of file download times and network latency. Bit time for a given link is simply the time taken to transmit one bit. Some bit times for commonly encountered link capacities are given in the table below:
Link technology | Bandwidth | Bit Time |
---|---|---|
telephone modem | 56 kbit/s | 17.86 μs = 17,857 ns |
2 Mbit ADSL broadband | 2 Mbit/s | 0.5 μs = 500 ns |
5 Mbit HFC broadband | 5 Mbit/s | 0.2 μs = 200 ns |
WiFi | 54 Mbit/s | 0.0185 μs = 18.5 ns |
Ethernet | 100 Mbit/s | 0.01 μs = 10 ns |
Gigabit Ethernet | 1 Gbit/s | 0.001 μs = 1 ns |
Once you have bit times, you can perform all calculations in terms of the packet size in bits and convert to time only if required.
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glossary/bit_time.txt · Last modified: 2011/01/14 12:46 by 127.0.0.1