Data sources in circuit-switching mode of operation, Computer Networking

A data link is shared by 20 data sources. Each source is active only 10% of the time and produces 1Mbps data rate when active. The sources start their transmissions at random.

a)  What is the data rate R of the link required to support the 20 data sources in circuit-switching mode of operation?  

b)  How many sources could be supported by the link of data rate R as calculated in (a) above if packet switched mode of operation is used and there is a buffer at the entrance to the link of sufficient capacity to smooth out the short term variation in the total data rate produced by the sources?

c)  If the sources produce packets of length L=1000 bytes each and there are 190 sources connected to the link of rate R as above, what will be the average packet delay if packet switched mode of operation is used and the buffer at the entrance to the link is of sufficient capacity to always accommodate newly arriving packets? Note: model the average delay as T = (L/R) / 1-I where L is packet length, R is the link data rate, and I is the traffic intensity.

Posted Date: 3/25/2013 6:04:35 AM | Location : United States







Related Discussions:- Data sources in circuit-switching mode of operation, Assignment Help, Ask Question on Data sources in circuit-switching mode of operation, Get Answer, Expert's Help, Data sources in circuit-switching mode of operation Discussions

Write discussion on Data sources in circuit-switching mode of operation
Your posts are moderated
Related Questions
Q. Show the RS232 Logic Waveform ? RS-232 Interface Three most important wires for the Serial interface Transmit - Pin 2 Receive - Pin 3 Ground - Pin

Define the Class B Addresses? First two octets are the network number as well as the last two octets are the host number 16382 probable blocks for assignment to organi

#clasification of inductor

Consider the following network example. With the indicated link costs along each link in the figure, use Dijkstra's shortest-path algorithm to compute the shortest path from x to a



The performance of interconnection networks is calculated on the given parameters. Bandwidth:  It is a calculated of maximum transmit rate among two nodes.   It is calculated i


State the Steps to provide more computing power In order to provide more computing power, the following steps may be taken: Add more processing power by addition of more

What is the difference between TFTP and FTP application layer protocols? Ans) TFTP - Trivial File Transfer Protocol A stripped down version of FTP, easy to use and fast. TFTP