EBK COMPUTER NETWORKING
EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
Expert Solution & Answer
Book Icon
Chapter 1, Problem P16P

Explanation of Solution

The average packet arrival rate can be calculated using the little’s formula from queuing theory N=a×d

The total number packets present in the router are packets present in the buffer and that are transmitting.

So, substitute “10+1 = 11” for “N”.

The average total delay time is queuingdelay+transmissiondelay and transmission time is inversely proportional to the transmission delay.

Thus, the queuing delay is (0.01+1100)=0.01+0

Blurred answer
Students have asked these similar questions
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?
In a data communication system, several messages that arrive at a node are bundled into a packet before they are transmitted over the network. Assume that the messages arrive at the node according to a Poisson process with rate 30 messages per minute (0.5 per second). Five messages are used to form a packet.What is the mean time until a packet is formed, that is, until five messages arrive at the node?
We consider a noisy communication link in which the message is encoded into binary digits (0,1) (bits)before being transmitted. We will denote the length of the encoded message by n. Since the channel isnoisy, the bits can get flipped; a 0 to 1 or a 1 to 0. We will assume that each bit is flipped independently withprobability p. In order to be able to detect that the received message is in error, a simple method is to add aparity bit at the transmitter. There can two types of parity - even parity and odd parity. If even (odd) parityis used , the parity bit is set such that total number of 1s in the encoded message is even (odd). For the sakeof this problem, we will only consider even parity. Here are a few examples1) message: 0001 + parity bit: 1 --> encoded message: 000112) message: 0101 + parity bit: 0 --> encoded message: 010103) message: 0111 + parity bit: 1 --> encoded message: 01111At the receiver, the parity bit is computed from the message bits. If the received parity…

Chapter 1 Solutions

EBK COMPUTER NETWORKING

Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education