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

Assignment Help:

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.


Related Discussions:- Data sources in circuit-switching mode of operation

Assigment, what the domain name of 128.252.160.2000

what the domain name of 128.252.160.2000

Perfect shuffle permutation-concept of permutation network, Perfect Shuffle...

Perfect Shuffle Permutation This was advised by Harold Stone (1971). Consider N objects each characterized by n bit number say  X n-1, X n-2, X 0    (N is chosen such that N

Odd-even merging circuit, Let us firstly illustrate the idea of merging two...

Let us firstly illustrate the idea of merging two sorted sequences using a odd-even merging circuit. The functioning of a merging circuit is as follows: 1)   Let there be two so

What is proxy ARP, What is Proxy ARP? Is using a router to give answer ...

What is Proxy ARP? Is using a router to give answer ARP requests. This will be completed when the originating host believes that a destination is local, when in fact is lies be

Wait protocol in parallel programming , Wait protocol The wait protoco...

Wait protocol The wait protocol is used for resolving the conflicts, which arise due to number of multiprocessors demanding the same resource. There are two types of wait prot

What is synchronous tdm, What is Synchronous TDM? In STDM, the multiple...

What is Synchronous TDM? In STDM, the multiplexer allocates exactly the same time slot to every device at all times, whether or not a device has anything to transmit.

Layers, what are the layers covered under end to end later connectivity?

what are the layers covered under end to end later connectivity?

Explain dynamic domain name system, Q. Explain Dynamic Domain Name System? ...

Q. Explain Dynamic Domain Name System? DDNS - Dynamic Domain Name System automatically updates the DNS master file - Sent by DHCP to a primary DNS server; secondary se

Ethernet interface on the cisco router , As a system administrator, you req...

As a system administrator, you require to set up single Ethernet interface on the Cisco router to permit for both sap and Novell-ether encapsulations. Which set of commands will ac

Residential access - computer network, Residential Access Residential ...

Residential Access Residential  access is connecting home  end  systems ( typically a PC but increasingly a home network) into the network. One form  of residential  access  i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd