Two endpoints are connected by a single link of rate R = 56kbps and the propagation speed along the link is 2 * 10^8. a) If one wants to send a packet of 120 bits to the other, what is the distance m so that the propagation time equals the transmission time?
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- 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?How long does it take a packet of length 1,000 bytes to propagate over a link of distance 2,500 km, propagation speed 25.125 m/s, and transmission rate 2 Mbps? More generally, how long does it take a packet of length L to propagate over a link of distance d, propagation speed s, and transmission rate R bps? Does this delay depend on packet length? Does this delay depend on transmission rate?How long does it take a packet of length 1,000 bytes to propagate over a link of distance 5,000 km, propagation speed of 2.5 x 108 m/s, transmission rate 1 Mbps? Generally, how long does it take a packet of length L to propagate over a link of distance d, propagation speed s, and transmission rate R bps? Does this delay depend on packet length? Does this delay depend on transmission rate?
- Consider two hosts S and R connected directly by a link. A link has a transmission speed of 107 bits/sec. It uses data packets of size 400 bytes. Data needed to transmitted is 400 bytes. Length of the link is 600 km and the propagation speed are 3 × 108 meter per second. T is the transmission delay and P is the propagation delay. The propagation delay in millisecond and transmission delay in microsecond respectively areTwo endpoints are linked by a single connection with a rate of R = 56kbps and a propagation speed of 2*108. a) What is the distance m between two points so that the propagation time matches the transmission time if one wants to send a packet of 120 bits to the other? b) Assume the server starts transmitting the packet at time te0. Where is the final bit of the packet when t= transmission delay? c) If the propagation time exceeds the transmission delay, where is the first bit of the packet when time equals transmission delay? d) If the propagation time were shorter than the transmission delay, where is the first bit of the packet when time equals?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?
- Two hosts are connected by a single direct link. Link transfer the data at a rate of 107 bits/seconds. The distance between the two host is 5000 km and the propagation speed along the link is 2 x 105 kilometer per second. One host is sending a data of 10,000 bytes in a single packet to another host. Let T₁ be the transmission delay and Tp be the propagation delay. The difference between the propagation delay and the transmission delay in millisecond isConsider a router that transmits bits onto a transmission medium at the rate of 2 Mbps. Let the link be 3 km in length, and bits propagate through the transmission medium at the speed of (approximately) 3x10^8 meters/sec. What is the transmission delay in seconds to transmit a packet of size 2,0o0 bits onto the link? a. 1x10^-5 seconds O b. .001 seconds с. 1 second d. -4 secondsIn this problem you will be doing some elementary calculations oftransmission and propagation delays.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 thelength of the link is 100Km.a. What is the propagation delay from A to B, that is the amount of timefrom when the first bit of the packet is transmitted at A, until it is receivedat B? and 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).
- Let a denote the rate of packets arriving at a link in packets/sec, and let μ denote the link’s transmission rate in packets/sec. Based on the formula for the total delay (i.e., the queuing delay plus the transmission delay) derived in the previous problem, derive a formula for the total delay in terms of a and μ.1) How long does it take a packet of length 1,000 bytes to propagate over a link of distance 5,000 km, propagation speed of 2.5 x 108 m/s, transmission rate 1 Mbps? Generally, how long does it take a packet of length L to propagate over a link of distance d, propagation speed s, and transmission rate R bps? Does this delay depend on packet length? Does this delay depend on transmission rate? 2) suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is 2.5 x 108 meters/sec. a. Calculate the bandwidth-delay product, R x dprop.b. Consider sending a file of 800, 000 bits from Host A to Host B. Suppose the file is sent continuously as one large message. What is the maximum number of bits that will be in the link at any given time?c. Provide an interpretation of the bandwidth-delay product? 3) Consider sending a packet from a source host to a destination host over a fixed route. List the…Computer A is sending a 100 kByte long file to Computer B via packet-switching over two consecutive 10 Mbps links of 1000 km length each.Assume that the signal propagation speed on both links is 2.5 x 108 m/s.Furthermore, assume that the maximum length of a packet is 1500 bytes and that Computer A fills each packet to the max, if possible. How "long" (in meters) is one bit on link 1?