QUESTION

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The 1982 Ethernet specification allowed between any two stations up to \( 1500 \mathrm{~m} \) of coaxial cable, \( 1000 \mathrm{~m} \) of other point-to-point link cable, and two repeaters. Each station or repeater connects to the coaxial cable via up to \( 50 \mathrm{~m} \) of "drop>cable. "Typical delays associated with each device are given in Table \( 2.6 \) (where \( c= \) speed of light in a vacuum \( =3 \times 10^{8} \mathrm{~m} / \mathrm{s} \) ). What is the worst-case round-trip propagation delay, measured in bits, due to the sources listed? [This list is not complete; other sources of delay include sense time and signal rise time.)


The 1982 Ethernet specification allowed between any two stations up to $1500 \mathrm{~m}$ of coaxial cable, $1000 \mathrm{~m}$ of other point-to-point link cable, and two repeaters. Each station or repeater connects to the coaxial cable via up to $50 \mathrm{~m}$ of "drop
cable." Typical delays associated with each device are given in Table 2.6 (where $c=$ speed of light in a vacuum $=3 \times 10^{8} \mathrm{~m} / \mathrm{s}$ ). What is the worst-case round-trip propagation delay, measured in bits, due to the sources listed? (This list is not complete; other sources of delay include sense time and signal rise time.)

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