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

Illustrate the downside of groupware The downside of groupware is that they are very costly and with the increase in complexity or additional features, the cost increases propo

Explain twisted pair cable. A pair of wires twisted with each other is CALLED as twisted pair cable.  A set of four pairs of twisted wires are bundled to form cable. These are


Parallel Construct The syntax of the parallel construct is as follows: #pragma omp parallel [set of clauses]  where clause is one of the following:  structured-block if(sca

Programming Based on Message Passing As we know, the programming model based on message passing uses high level programming languages like C/C++ along with a number of message

The disadvantages and advantages of Private and Public networks are shown in the table below:

We studied Dijkstra's link-state routing algorithm for computing the unicast paths that are individually the shortest paths from the source to all destinations. The union of these

Q. Illustrate Go Back - N protocol? Go Back - N - Sender window size - Receiver window size = 1 - Why the names go back- N? - When the frame is spoilt the sende

Perform Basic Switch Configurations Step 1: Cable a network that is similar to the one in the topology diagram.  You can use any current switch in your lab as long as it has