Consider a network which uses a frame size oT RRo send data on a 1.5 Mbps link with a one-way latency of 50 msec. In order to increase link utilization to 60%, determine the minimum number of bits required to be transmitted using an effective flow control protocol such that less latency is achieved. Explain the approach and determine the latency / throughput for user defined service. 988 x 151
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- A pipelined reliable transfer protocol has a window size of N segments and runs over a link with bandwidth R=100Mbps. The link has a propagation delay t_prop=300ms. Each data packet sent over the link is of size L_D=5kBytes, whereas acknowledgements are of size L_A=50Bytes. Answer the following questions and show your work where indicated. A. What is the achieved throughput of the above pipelined protocol for N=4, 8 and 16? B. What is the link utilization for N=4, 8 and 16? Note that in class, we calculated the link utilization in terms of the time the sender is busy sending. We can also do this in terms of the achieved vs. available throughput. C. Will the achieved throughput of the above pipelined protocol grow or shrink if the packet size was increased? D. Will the achieved throughput of the above pipelined protocol grow or shrink if the propagation time was increased? E. Will the achieved throughput of the above pipelined protocol grow or shrink if the transmission rate of the link…This elementary problem begins to explore propagation delay andtransmission delay, two central concepts in data networking. Consider two hosts, Aand B, connected by a single link of rate R bps. Suppose that the two hosts areseparated by m meters, and suppose the propagation speed along the link is smeters/sec. Host A is to send a packet of size L bits to Host B. g. Suppose ? = 2.5?108, L=1500 bytes, and R=10 Mbps. Find the distance m sothat ????? equals ??????.This elementary problem begins to explore propagation delay andtransmission delay, two central concepts in data networking. Consider two hosts, Aand B, connected by a single link of rate R bps. Suppose that the two hosts areseparated by m meters, and suppose the propagation speed along the link is smeters/sec. Host A is to send a packet of size L bits to Host B.a. Express the propagation delay, ????? , in terms of m and s.b. Determine the transmission time of the packet, ?????? , in terms of L and R.c. Ignoring processing and queuing delays, obtain an expression for the end to-enddelay
- This elementary problem begins to explore propagation delay and transmission delay, twocentral concepts in data networking. Consider two hosts, A and B, connected by a single link ofrate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagationspeed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B.a. Express the propagation delay, dprop, in terms of m and s.b. Determine the transmission time of the packet, dtrans, in terms of Land R.c. Ignoring processing and queuing delays, obtain an expression for the endto-end delay.d. Suppose Host A begins to transmit the packet at time t = 0. At time t = dtrans,where is the last bit of the packet?e. Suppose dprop is greater than dtrans. At time t = dtrans, where is the first bit ofthe packet?f. Suppose dprop is less than dtrans. At time t = dtrans, where is the first bit ofthe packet?g. Suppose s = 2.5 · 108, L = 120 bits, and R = 56 kbps. Find the distance mso that dprop equals…This elementary problem begins to explore propagation delay and transmission delay, two central concepts in datanetworking. Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts areseparated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet ofsize L bits to Host B.a. Express the propagation delay, dprop, in terms of m and s.b. Determine the transmission time of the packet, dtrans, in terms of L and R.c. Ignoring processing and queuing delays, obtain an expression for the end-to-end delay.d. Suppose Host Abegins to transmit the packet at time t = 0. At time t = dtrans, where is the last bit of the packet?e. Suppose dprop is greater than dtrans. At time t = dtrans, where is the first bit of the packet?f. Suppose dprop is less than dtrans. At time t = dtrans, where is the first bit of the packet?g. g. Suppose s = 2.5 · 108, L = 120 bits, and R = 56 kbps. Find the distance m so that dprop…This elementary problem begins to explore propagation delay andtransmission delay, two central concepts in data networking. Consider two hosts, Aand B, connected by a single link of rate R bps. Suppose that the two hosts areseparated by m meters, and suppose the propagation speed along the link is smeters/sec. Host A is to send a packet of size L bits to Host B. d. Suppose Host A begins to transmit the packet at time t=0 . At time t= ?????? ,where is the last bit of the packet? e. Suppose ????? is greater than ?????? . At time t= ??????, where is the first bit of the packet?f. Suppose ????? is less than ??????. At time t= ?????? , where is the first bit of thepacket?
- 2. Question; Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B. Express the propagation delay, ????? , in terms of m and s. Determine the transmission time of the packet, ?????? , in terms of L and R. Ignoring processing and queuing delays, obtain an expression for the end-to-end delay. Suppose , ? = 2?10^8 ?/?, ? = 5 ????? and ? = 100???? Find the distance m so that ????? equals ??????.Consider two nodes, A and B are attached to opposite ends of an 1200 meter cable with signal propagation speed is 2 x 10^8 m/sec. Frame size used by both nodes is 1500 bits including header and preambles. Assume transmission rate is 100 Mbps and there are four switches between node A and B each insert 20 bit delay as a processing time in addition to store and forward delay. If only A has packet to send, then the time taken to reach A's packet at B is?The distance between two microwave towers, with the link capacity 100 Mbps, is 24 Km and the speed of the signal is 3 x 10^8 m/sec. If the frame size is 50 KB in the GoBack-N protocol, The approximate link utilization is _in %(. Assume that the ACK packets are negligible in the size and there are no errors during communication ) Correct answer will be appreciated , else downvoted.
- Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec.Host A is to send a packet of size L bits to host B.a. Express the propagation delay, dprop, in terms of m and s.b. Determine the transmission time of the packet, dtrans, in terms of L and R.c. Ignoring processing and queuing delays, obtain an expression for the end-to-end delay.d. Suppose host A begins to transmit the packet at time t= 0, at time t =dtrans, where is the last bit of the packet?e. Suppose dprop is greater than dtrans. At time t =dtrans, where is the first bit of the packet?f. Suppose dprop is less than dtrans. At time t =dtrans, where is the first bit of the packet?g. Suppose s = 2.5 x 10^8 , L=100 bits, and R=28 Kbps. Find the distance m so that dprop = dtrans.Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to host B.a. Express the propagation delay, dprop, in terms of m and s.b. Determine the transmission time of the packet, dtrans, in terms of L and R.c. Ignoring processing and queuing delays, obtain an expression for the end-to-end delay.d. Suppose host A begins to transmit the packet at time t= 0, at time t =dtrans, where is the last bit of the packet?e. Suppose dprop is greater than dtrans. At time t =dtrans, where is the first bit of the packet?f. Suppose dprop is less than dtrans. At time t =dtrans, where is the first bit of the packet?g. Suppose s = 2.5 x 108, L=100 bits, and R=28 Kbps. Find the distance m so that dprop = dtrans.Use again the network architecture provided in the figure above, were RS, RC and Ri for i = {1,2,3,4}, the transmission rates of the server link, client link and intermediate network links. Consider a message that is 60 · 106 bits long that is to be sent from client to server. Ignore propagation, queuing, and processing delays. a.Now assume that Rc = 60Mbps, Rs = 40Mbps, R1 = R3 = 30Mbps, R2 = 10Mbps and R4 = 20Mbps. Suppose that the message is segmented into 6000 packets, with each packet being 10,000 bits long. How long does it take to move the first packet from source host to the first switch? When the first packet is being sent from the first switch to the second switch, the second packet is being sent from the source host to the first switch. At what time will the second packet be fully received at the first switch? b) How long does it take to move the file from source host to destination host when message segmentation is used if path R3, R4 is chosen?