A router receives an IP packet containing 600 data bytes and has to forward thepacket to a network with maximum transmission unit of 200 bytes. Assume thatIP header is 20 bytes long.(1)Cakculate the minimum number of fragmented packets needed to forwardthe data.(ü) Calculate the fragment offset values for each of the fragmented packets?(üi) List the more fragment bits (M bit) of each of the packet.

i) MTU size = 200 B which will contain 20B header. So maximum data allowed which is multiple of 8 =…

Answered: A router receives an IP packet…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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ii) Data is transmitted in 128-byte blocks or packets. Seven sequential packets are transmitted. The system BER is 1 x 10*. On an average, how many errors can be expected in this transmission?
UDP and TCP segments have a fixed size of payload field. (A) True B) False
Topic: Network Delay Assume two hosts, A and B, that are linked by a single link with a rate of R bps and are spaced m meters away from one another. A packet of size L bits is being sent from Host A to Host B. Suppose that the propagation through the connection is occurring at s meters/second. (Answer the following question while showing work) 1) Assuming that processing and queuing delays are 0, provide an expression for end-to-end delay in terms of m, s, L, and R. 2) Where is the final bit of the packet at time t = dtrans if Host A starts transmission at time t = 0?
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Q3.Unless specified otherwise, use the free space propagation speed of light 3x108 m/s to calculate the propagation delay. For numerical calculations, the results must show the appropriate unit. Show a complete solution for each problem in your submission. Consider a digital multimedia transmission system. Separate audio and video coders are used to encode these signals. Audio and video bits are packed in packets together and transmitted over atransmission link. Each packet is 2,000 bytes long, which includes a 48-byte header. The system generates one packet every 40 ms. Calculate the following values:a. The minimum data transmission rate required to support the above system.b. The minimum signal-to-noise ratio (SNR) in dB required to transmit the above audio and video information. Assume a 400-kHz transmission channel bandwidth is used.c. The end-to-end packet delay over a 50-km link, using answer in Part a).
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Q6) Assuming the router's buffer is infinite, the queuing delay is 1.2957 ms, and 1476 packets arrive. How many packets will be in the buffer 1 second later? Assume a constant transmission rate of R = 300000 bps, a constant packet-length L = 1600 bits, and a is the average rate of packets/second. Traffic intensity I = La/R, and the queuing delay is calculated as I(L/R)(1 - 1) for I < 1. Average queuing delay 950 packets 705 packets 780 packets La/R 1 Answer isn't a unique number
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5
q11- This question involves estimation of error handling overhead for a communication link which has a BER of 10−2 Forward error correct (FEC) Frame: Total 1144 bits 1024 bit of data 120 FEC bits Error Detection + automatic repeat request (ED + ARQ) Frame: Total 1074 bits 1024 bit of data 50 CRC bits a) Our task is to find the approximate frame error rate (FER) for FEC in percentage Answer: Answer b) Estimate the approximate overhead for ED + ARQ in percentage Answer: Answer
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