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- The "Summary" analysis dialog calculates for the user
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- the amount of Ethernet bandwidth that was consumed for the
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- latest sample of Ethernet data collected. The bandwidth
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- of an Ethernet/IEEE 802.3 network is 10M bits per second.
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- The calculation of the percent of this bandwidth consumed
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- by the packets collected is detailed by two measurements:
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- * Ethernet Data: is the sum of all the Ethernet data
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- bytes collected in the sample including the 14 byte
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- Ethernet header and four bytes of CRC.
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- * Transmission Overhead: is the number of packets
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- collected times 8 bytes for the preamble of each
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- packet.
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- The percent bandwidth, then, is calculated by summing these
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- two values, multiplying by 8 to get the number of bits,
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- dividing by the length of the time for the sample, and,
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- finally, dividing by 10M bits.
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- Also displayed in this dialog is the smallest, largest, and
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- average packet sizes found in the sample.
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