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Peterson Davie 2.18a
Suppose we want to transmit the message $11100011$ and protect it from errors using the CRC polynomial $x^{3}+1$. (a) Use polynomial long division to determine the message that should be transmitted.
Suppose we want to transmit the message $11100011$ and protect it from errors using the CRC polynomial $x^{3}+1$.(a) Use polynomial long division to determine the message...
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Peterson Davie 2.42b
Suppose the round-trip propagation delay for Ethernet is $46.4 \mu s$. This yields a minimum packet size of $512$ bits ($464$ bits corresponding to propagation delay $+48$ bits of jam signal). (b) What are the drawbacks to so large a minimum packet size?
Suppose the round-trip propagation delay for Ethernet is $46.4 \mu s$. This yields a minimum packet size of $512$ bits ($464$ bits corresponding to propagation delay $+48...
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Peterson Davie 3.3
For the network given in Figure 3.45, give the datagram forwarding table for each node. The links are labeled with relative costs; your tables should forward each packet via the lowest-cost path to its destination.
For the network given in Figure 3.45, give the datagram forwarding table for each node. The links are labeled with relative costs; your tables should forward each packet ...
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Peterson Davie 2.39
What kind of problems can arise when two hosts on the same Ethernet share the same hardware address? Describe what happens and why that behavior is a problem.
What kind of problems can arise when two hosts on the same Ethernet share the same hardware address? Describe what happens and why that behavior is a problem.
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Peterson Davie 3.23
Suppose a bridge has two of its ports on the same network. How might the bridge detect and correct this?
Suppose a bridge has two of its ports on the same network. How might the bridge detect and correct this?
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Peterson Davie 2.23a
Consider an $ARQ$ algorithm running over a $40$-km point-to-point fiber link. (a) Compute the one-way propagation delay for this link, assuming that the speed of light is $2 \times 108$ m/s in the fiber.
Consider an $ARQ$ algorithm running over a $40$-km point-to-point fiber link.(a) Compute the one-way propagation delay for this link, assuming that the speed of light is ...
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Peterson Davie 3.33
What aspect of $IP$ addresses makes it necessary to have one address per network interface, rather than just one per host? In light of your answer, why does $IP$ tolerate point-to-point interfaces that have nonunique addresses or no addresses?
What aspect of $IP$ addresses makes it necessary to have one address per network interface, rather than just one per host? In light of your answer, why does $IP$ tolerate...
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Peterson Davie 3.25
Cell switching methods (like $ATM$) essentially always use virtual circuit switching rather than datagram forwarding. Give a specific argument why this is so (consider the preceding question).
Cell switching methods (like $ATM$) essentially always use virtual circuit switching rather than datagram forwarding. Give a specific argument why this is so (consider th...
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