Multi-hop network: Given two hosts A and B, and one router between them. Packet size is L bits and the link bandwidth is R bps for both links. Suppose A has two packet to send to B. How long does it take starting from A sending the first bit of first packet till B receives the last bit of the last packet?
Q: Q1: Consider a computer network want to send data packets from router to destination router z. The…
A: Question 1. Consider a computer network that wants to send data packets from router to destination…
Q: This elementary problem begins to explore propagation delay and transmission delay, two central…
A: a. Expressing the propagation delay, dprop, in terms of m and s: dprop = m/s seconds. b.…
Q: Computer Networks Consider a packet of length L that begins at end system A and travels over three…
A: Given: Computer Networks Consider a packet of length L that begins at end system A and travels over…
Q: We have 5 routers labled A-E. Suppose we have the forwarding tables shown below after the routing…
A: To send a message from A to E , the least possible cost is 2 and there are two paths having cost 2…
Q: sing Selective Repeat protocol, suppose the sender and receiver are both using a e sender's window…
A: It is defined as mostly identical to GBN protocol, except that buffers are used and the receiver,…
Q: Consider two systems A and B connected with each other and bound to stop and wait protocol. System A…
A: in stop and wait protocol ,packet lost during transmission is the only packet retransmitted…
Q: Q. Consider a computer 1 that communicates with a computer 2 via LAN1, router R1, and LAN2. The…
A:
Q: Consider a router that transmits bits onto a transmission medium at the rate of 2 Mbps. Let the link…
A: Given: Bandwidth = 2 Mbps => 2 *106 bits/sec Distance = 3 km Speed = 3 * 108 meter/sec…
Q: Consider a network with a ring topology, link bandwidths of 100 Mbps, and propagation speed 2 × 108…
A:
Q: Assume the two hosts on the left of the figure start transmitting packets of 1500 bytes at the same…
A: the solution is an given below :
Q: Consider the network depicted in the below figure. Suppose that router R1 receives a packet Pkt1…
A:
Q: Router R1 is connected to another router R2 with link of L1 with a transmission rate of 67…
A:
Q: Exercise 2. [Delay estimation] Adapt from Kurose 7th edition, chapter 1 problem P10,P11. Consider a…
A: All the above 3 questions has been solved succesfully, kindly check the step2.
Q: Consider a short, 10-meter link, over which a sender can transmit at a rate of 150 bits/sec in both…
A: total time for all received objects is given by: (200/150+Tp + 200/150 +Tp + 200/150+Tp +…
Q: Consider a two-link network where HOst A IS Connected to the router by a 1 Mbps link with 10 ms…
A: The answer is..
Q: a. b. router R2 Find the queuing delay of packet Pktl at router R1. Find the propagation delay of…
A: HERE IS COMPLETE SOLUTION REGARDING YOUR PROBLEM :
Q: 4. Consider sending a packet from a source host to a destination host over a fixed route. List the…
A: Delays in Packet switching : Transmission Delay. Propagation Delay. Queuing Delay. Processing Delay.
Q: Q3] Given the Adjacency matrix X shown below for a nine router interior routing network (the routers…
A:
Q: Consider a packet of length L that begins at end system A and travels over three links to a…
A:
Q: QUESTION 78 Consider the network shown below. Suppose all ASs are running OSPF for their intra-AS…
A: OSPF stands for Open shortest path first. It is an intradomain protocol in which it divides the…
Q: Consider a packet of length L that begins at end system A and travels over three links to a…
A: Given: Assume that, Packet length = L Link, i length = di Propagation speed = si Transmission rate =…
Q: Consider a two-link network where Host A is connected to the router by a 1 Mbps link with 10 ms…
A: The answer is..
Q: Consider four Internet hosts, each with a TCP session. These four TCP sessions share a common…
A: The solution for the above given question is given below:
Q: Consider a message with 60 × 103 bits long, that is to be sent from a source to a destination, there…
A: Introduction
Q: Problem 2. Consider a packet of L bits that is sent over a path of Q links (i.e., a source and…
A: Packet switching is defined as the connectionless network where the messages are divided and grouped…
Q: Suppose that KJ sends 3596 back-to-back packets, with each packet composed of 14,000 bits, to TA…
A: To find delay
Q: Let a denote the rate of packets arriving at a link in packets/sec, and let μ denote the link’s…
A: Consider the following data:
Q: Consider a message of 200 octets to be sent from sender to receiver using 3 intermediate nodes. If…
A: Consider a message of 200 octets to be sent from sender to receiver using 3 intermediate nodes. If…
Q: A packet switch receives a packet and determines the outbound link to which the packet should be…
A: GIVEN INFORMATION: Packet length(L)= 1,500 bytes. Transmission Rate(R)= 2 Mbps that is 2x106 bps.…
Q: If delays are recorded as 8-bit numbers in a 50-router network, and delay vectors are exchanged…
A: if delays are recorded as 8 bit numbers in a 50 router network and delay vectors are excahngesd…
Q: Suppose that Bob sends N back-to-back packets (numbered 1 to N) to Alice over two links (shown…
A: Solution: Transmission rate at Bob = R bits/sec Transmission rate at the intermediate router = 2R…
Q: Consider a router buffer preceding an outbound link. In this problem, you will use Little’s formula,…
A: Consider the following data, “N” denotes the average number of packets in the buffer plus the…
Q: Take two hosts, A and B, linked by a single R bps connection. Assume that both hosts are separated…
A: The problem is solved assuming that both hosts are separated by meters and suppose that the…
Q: In this problem you will be doing some elementary calculations of transmission and propagation…
A: Transmission delay= length of packet/bandwidth = 2KB/2.1 Mbps => 2*1024*10-6 /2.1 => 0.975 ms…
Q: Consider a packet of length L that begins at end system A and travels over three links to a…
A: Given terms are Packet size,L = 1200 bytes= 1200* 8 Link transmission rate of all three…
Q: a. Suppose N packets arrive simultaneously to a link at which no packets are currently being…
A: Consider the following data, “N” denotes number of packets. “L” denotes the length of each packet.…
Q: ppose that Router A and Router B are connected via a 0.05 Mbps link (note, 1 Mbps = 106 bps) and…
A:
Q: In this problem you will be doing some elementary calculations of transmission and propagation…
A: In this problem you will be doing some elementary calculations oftransmission and propagation…
Q: D) Consider sending a packet contains 1100 bits from Host A to Host B in a store and forward…
A: Given Data : Packet size = 1100 Bits Number of links = 10 links Number of packets in the queue = 5…
Q: Consider the following two arrival patterns of packets at a router: • (A) N packets arrive…
A: The question is on finding correct statement(s) with respect to the given question.
Q: Assume that there are two routers, each router is connected with pc A and pc B. Find the number of…
A: Answer: I have given answered in the handwritten format in brief explanation.
Q: Consider a packet of length L that begins at end system A and travels over three links to a…
A: packet length = L link i Length = di propagation speed = si transmission rate = Ri the first end…
Q: P10. Consider a packet of length L that begins at end system A and travels over three links to a…
A: Answer : Given Data- Packet is : 1500 bytes, Propagation speed = 2.5 *10^8 m/s. Transmission rates…
Q: In this problem you will be doing some elementary calculations of transmission and propagation…
A: In-Store and forward transmission, the packet switch must receive an entire packet bits before…
Q: er two hosts C & D connected by a point-to-point link with a data link rate of 10 Gb/s. The hosts…
A:
Q: Consider a datagram network using 8-bit host addresses. Suppose a router uses longest prefix…
A: The range of destination host addresses are described in the below table: Prefix Destination…
Q: A packet switch receives a packet and determines the outbound link to which the packet should be…
A: Given information: Packet length (L) = 1200 bytes Transmission rate (R) = 2 Mbps that is 2*106 bps.…
Multi-hop network: Given two hosts A and B, and one router between them.
Packet size is L bits and the link bandwidth is R bps for both links.
Suppose A has two packet to send to B.
How long does it take starting from A sending the first bit of first packet
till B receives the last bit of the last packet?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- a. Suppose N packets arrive simultaneously to a link at which no packets are currently being transmitted or queued. Each packet is of length L and the link has transmission rate R. What is the average queuing delay for the N packets? b. Now suppose that N such packets arrive to the link every LN/R seconds. What is the average queuing delay of a packet?Computer Networks Consider a packet of length L that begins at end system A and travels over three links to a destination end system. These three links are connected by two packet switches. Let d, s, and R denotes the length, propagation speed, and the transmission rate of link i, for i=1,2,3 . The packet switch delays each packet by d . Assuming no queuing delays, in terms of d, s , R, (i=1,2,3), and L, what is the total end-to-end delay for the packet? Suppose now the packet is 1,500 bytes, the propagation speed on all three links is the transmission rates of all three links are 2 Mbps, the packet switch processing delay is 3 msec, the length of the first link is 5,000 km, the length of the second link is 4,000 km, and the length of the last link is 1,000 km. For these values, what is the end-to-end delay? In the above problem, suppose R1=R2=R3=R and dproc=0. Further, suppose the packet switch does not store-and-forward packets but instead immediately transmits each bit it…Computer Networks Consider a packet of length L that begins at end system A and travels over three links to a destination end system. These three links are connected by two packet switches. Let d, s, and R denotes the length, propagation speed, and the transmission rate of link i, for i=1,2,3 . The packet switch delays each packet by d . Assuming no queuing delays, in terms of d, s , R, (i=1,2,3), and L, what is the total end-to-end delay for the packet? Suppose now the packet is 1,500 bytes, and the propagation speed on all three links are 3125km/sec, 10000 km/sec, and 3333km/sec respectively. The transmission rates of all three links are 2 Mbps, the packet switch processing delay is 3 msec, the length of the first link is 5,000 km, the length of the second link is 4,000 km, and the length of the last link is 1,000 km. For these values, what is the end-to-end delay? In the above problem, suppose R1=R2=R3=R and dproc=0. Further, suppose the packet switch does not store-and-forward…
- A packet switch receives a packet and determines the outbound link to which the packet should be forwarded. When the packet arrives, one other packet is halfway done being transmitted on this outbound link and four other packets are waiting to be transmitted. Packets are transmitted in order of arrival. Suppose all packets are 1,200 bytes and the link rate is 2 Mbps. What is the queuing delay for the packet? More generally, what is the queuing delay when all packets have length L, the transmission rate is R, x bits of the currently-being-transmitted packet have been transmitted, and n packets are already in the queue?Consider two hosts, A and B that are connected by a transmissions link of2.1 Mbps. Assume that packets are of length 2.0 Kb (Kilobits) and the length of the link is 100Km. a. What is the propagation delay from A to B, that is the amount of time from when the first bit of the packet is transmitted at A, until it is received at B? b. What is the transmission time of the packet at A (the time from when the first bit of the packet is sent into the wire and the time at which the last bit is sent into the wire). c. Suppose now that that length of the link is doubled. What is the propagation delay from A to B now and what is the transmission time? d. Now suppose that node C is connected to node B also by a 2 Mbps, 100 Km link. How long does it take from when the first bit is transmitted by A to when the last bit is received at C, assuming B operates in a store-and -forward manner?Consider a router buffer preceding an outbound link. In this problem, you will use Little’s formula, a famous formula from queuing theory. Let N denote the average number of packets in the buffer plus the packet being transmitted. Let a denote the rate of packets arriving at the link. Let d denote the average total delay (i.e., the queuing delay plus the transmission delay) experienced by a packet. Little’s formula is N=a⋅d . Suppose that on average, the buffer contains 10 packets, and the average packet queuing delay is 10 msec. The link’s transmission rate is 100 packets/sec. Using Little’s formula, what is the average packet arrival rate, assuming there is no packet loss?
- Consider two systems P and Q connected via a router R with the bandwidth of 2 Gbps. The length of the packet is 1000 bytes. The propagation delay between P and Q is 200 microseconds. The distance between the P and R is 10 km while the distance between R and Q is 5 km. The propagation speed in meter per second if each link is having the same 10³ km/s? propagation speed isGiven a M/M/1 queue, which has packets arriving at a rate 2 packets/sec, an output link rate R bps, and an average packet size of 1500 bytes, write down: the expression for T, the average delay for a packet (i.e., from arrival till completing transmission at the output). b. the expression for the output utilization c. the expression for average number of packets in the queue d. the expression for average number of packets in the output NICConsider four Internet hosts, each with a TCP session. These four TCP sessions share a common bottleneck link - all packet loss on the end-to-end paths for these four sessions occurs at just this one link. The bottleneck link has a transmission rate of R. The round trip times, RTT, for all fours hosts to their destinations are approximately the same. No other sessions are currently using this link. The four sessions have been running for a long time. i) What is the approximate throughput of each of these four TCP sessions? Explain your answer briefly. ii) What is the approximate size of the TCP window at each of these hosts? Explain briefly how you arrived at this answer.
- Problem 2. Consider a packet of L bits that is sent over a path of Q links (i.e., a source and destination connected by a sequence of (Q-1) routers or switches). Each link transmits at R bps. This packet is the only traffic transmitted by the network (so there are no queuing delays) and the propagation delay and processing delay at routers are negligible. How long does it take to send this packet from source to destination if the network is: a) a packet-switched datagram network b) a circuit-switched network. Assume that bandwidth of R bps on each link is sliced into five individual circuits, so that cach circuit receives (R/5) bandwidth. Also assume that the circuit setup time is t,.. Give an expression for the number of links Q such that the packet delivery from the sender to the receiver will be faster over the packet-switched network, and the expression for the number of links Q such that the circuit-switched network will be faster.Assume a wireless network consists of an access point (denoted as X) and two wireless nodes (denoted as A and B respectively). Assume that wireless nodes A and B cannot hear each other's transmissions, but they can hear X (i.e. X can hear A and B). Suppose ● ● At time 0 µs, X is sending a packet to some other node and it completes sending this packet at time 100 µs. At time 20 µs, a packet becomes available for transmission at A. A needs 150 μs to send this packet. At time 60 µs, a packet becomes available for transmission at B. B needs 100 µs to send its packet. Let the value of the backoff timer for A be 40 µs and the value of the backoff timer for B be 60 μs. 1) Sketch the above described topology to include wireless nodes X, A, B, and their coverage. You may use tools such as Word, Paint, Visio, etc. to complete this topology.Consider a packet of length L that begins at end system A and travels over three links to a destination end system. These three links are connected by two packet switches. Let d, s, and R denotes the length, propagation speed, and the transmission rate of link i, for i=1,2,3 . The packet switch delays each packet by d . Assuming no queuing delays, in terms of d, s , R, (i=1,2,3), and L, what is the total end-to-end delay for the packet? Suppose now the packet is 1,500 bytes, and the propagation speed on all three links are 3125km/sec, 10000 km/sec, and 3333km/sec respectively. The transmission rates of all three links are 2 Mbps, the packet switch processing delay is 3 msec, the length of the first link is 5,000 km, the length of the second link is 4,000 km, and the length of the last link is 1,000 km. For these values, what is the end-to-end delay? In the above problem, suppose R1=R2=R3=R and dproc=0. Further, suppose the packet switch does not store-and-forward packets but…