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Question 18 1 pts Consider a message that is 4,000,000 bits long that is to be...
What happens to the time when the message is segmented? Network delay and throughput 4. [20...
What
happens to the time when the message is segmented?
Network delay and throughput 4. [20 pts.] In a packet-switched network, the source host segments a long message into smaller packets and sends the packets into the network. The receiver then reassembles the packets back into the original message. The figure below illustrates the end-to-end transport of a message: (a) without message segmentation, and (b) with message segmentation. Assume the following: message size is M 8 × 106 bits, transmission...
Q2.3. (15%) Consider sending a file of F bytes over a path of Q links. Each...
Q2.3. (15%) Consider sending a file of F bytes over a path of Q links. Each link transmits at R bps. The network is lightly loaded so that there are no queuing delays at any link. The propagation delay on each link is Tp seconds on average. 1. Suppose the network is a packet-switched virtual-circuit network. Assume the VC setup time is Ts seconds. Suppose the sending layers add a total of h bits of header to the file, and...
3. Suppose there is exactly one packet switch (or router) between a sending host and a...
3. Suppose there is exactly one packet switch (or router) between a sending host and a receiving host. The transmission rates between the sending host and the switch and between the switch and the receiving host are R1 = 1Mbps and R2 = 2Mbps, respectively. Assuming that the switch uses store-and-forward packet switching, what is the total end-to-end delay to send a packet of length 18000bits? Assume that the propagation speed is 2 * 108 meters/sec, the distance between source...
Consider sending a large file of Z bits from Host A to Host B. There are four links (and three sw...
Consider sending a large file of Z bits from Host A to Host B. There are four links (and three switches) between A and B, and the links are uncongested (that is, no queuing delays). Host A segments the file segments of S bits each and adds 60 bits of header to each segment, forming packets of L 60S bits. Each link has a transmitting rte of R bps. Propagation delay is ρ microseconds kilometer. Consider the following distances: A...
1. What is end-system? List example of end-systems 2. Define network edge and network core 3....
1. What is end-system? List example of end-systems 2. Define network edge and network core 3. Explain Packet-switching 4. List five tasks that a computer network layer can perform Is it possible that one (or more) of these tasks could be performed by two (or more) layers? 5. This elementary problem begins to explore propagation delay and transmission delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps....
Note: b denotes bits and B denotes Bytes (1 Byte 8 bits) Question 1: 32 points:...
Note: b denotes bits and B denotes Bytes (1 Byte 8 bits) Question 1: 32 points: (16)+(16) Source Destination Consider a packet of length L, which begins at source and travels over seven links to a destination. These links are connected through six routers. Let di, si, and Ri denote the length, propagation speed, and the transmission rate of link i, for i 1 to 7. The processing delay at each router is d-proc. The queuing delay at each router...
Note: b denotes bits and B denotes Bytes (1 Byte = 8 bits). Consider a packet...
Note: b denotes bits and B denotes Bytes (1 Byte = 8 bits). Consider a packet of length L, which begins at source and travels over seven links to a destination. These links are connected through six routers. Let di, si, and Ri denote the length, propagation speed, and the transmission rate of link i, for i = 1 to 7. The processing delay at each router is d-proc. The queuing delay at each router is d-que. What is the...
Compute the time required for circuit switching and packet switching with the following conditions: •The destination...
Compute the time required for circuit switching and packet switching with the following conditions: •The destination is 4hops away from the source: three intermediate switches between the source and the destination, with 4links. •The distance between source (anddestination) computerto its connected switch is 1Km.The distance between any two adjacent switches is 10Km. •The signal propagation speed is 5x10^5m per second.•The message size is 5 Mega bits (1 Mega = 10^6) •The maximum packet size is 200k bits (1k = 10^3....
Consider a packet switching network. Packets from origin host travel over H hops to reach the...
Consider a packet switching network. Packets from origin host travel over H hops to reach the destination host. Supppose that the origin host wants to transmit a message that is M bits long. The bit rate of all links is C (bits/sec), and the propoagation delay over every link is D seconds. The message will be broken into packets. Suppose that each packet has a constant overhead of V bits. Let L be the fixed payload of each packet. Thus,...
03) Consider sending a file size of O bits over a path of 2 links. Suppose...
03) Consider sending a file size of O bits over a path of 2 links. Suppose the first link can transmit at R1 bit/sec (bps) and the second link can transmit R2 bits/sec (bps) (R1+ R2), both links have a propagation delay of tp, network lightly loaded (no queuing delays), and each link's maximum frame size, S bits, is same (S < O and number of segments is integer and headers are negligible.). (a) How long does it take to...
What
happens to the time when the message is segmented?
Network delay and throughput 4. [20 pts.] In a packet-switched network, the source host segments a long message into smaller packets and sends the packets into the network. The receiver then reassembles the packets back into the original message. The figure below illustrates the end-to-end transport of a message: (a) without message segmentation, and (b) with message segmentation. Assume the following: message size is M 8 × 106 bits, transmission...
Q2.3. (15%) Consider sending a file of F bytes over a path of Q links. Each link transmits at R bps. The network is lightly loaded so that there are no queuing delays at any link. The propagation delay on each link is Tp seconds on average. 1. Suppose the network is a packet-switched virtual-circuit network. Assume the VC setup time is Ts seconds. Suppose the sending layers add a total of h bits of header to the file, and...
Consider sending a large file of Z bits from Host A to Host B. There are four links (and three switches) between A and B, and the links are uncongested (that is, no queuing delays). Host A segments the file segments of S bits each and adds 60 bits of header to each segment, forming packets of L 60S bits. Each link has a transmitting rte of R bps. Propagation delay is ρ microseconds kilometer. Consider the following distances: A...
1. What is end-system? List example of end-systems 2. Define network edge and network core 3. Explain Packet-switching 4. List five tasks that a computer network layer can perform Is it possible that one (or more) of these tasks could be performed by two (or more) layers? 5. This elementary problem begins to explore propagation delay and transmission delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps....
Note: b denotes bits and B denotes Bytes (1 Byte 8 bits) Question 1: 32 points: (16)+(16) Source Destination Consider a packet of length L, which begins at source and travels over seven links to a destination. These links are connected through six routers. Let di, si, and Ri denote the length, propagation speed, and the transmission rate of link i, for i 1 to 7. The processing delay at each router is d-proc. The queuing delay at each router...
03) Consider sending a file size of O bits over a path of 2 links. Suppose the first link can transmit at R1 bit/sec (bps) and the second link can transmit R2 bits/sec (bps) (R1+ R2), both links have a propagation delay of tp, network lightly loaded (no queuing delays), and each link's maximum frame size, S bits, is same (S < O and number of segments is integer and headers are negligible.). (a) How long does it take to...
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