Repeaters, Computer Networking

Assignment Help:

REPEATERS:

 Repeaters are needed when copper wire communication is takes place. According to the fact that electrical signal goes weaker while travelling over copper lines. A repeater is used to gain the signal strength. It amplifies the weakening signal received from one packet and then retransmits onto another packet. It is given in the figure below:

286_REPEATERS.png

 

Figure

 One repeater doubles, two repeaters triple the highest cable length limitation.

 Devices attached to different code segments communicate as if they are connected to the similar cable.

 It is to be noticed that we cannot increase the maximum cable length as several times as we wish by just including repeaters. The reason for this is that each repeater produce a delay and the access function such as CSMA/CD does not work with long time delays.

 Ethernet standard specifies that any two stations may not be distinguish by more than four repeaters.

2288_REPEATERS1.png

Figure

The diagram displays repeaters using the vertical code segment. We see that only two repeaters differ any two stations in this function.

DISADVANTAGES OF REPEATERS:

 Repeaters do not known frame formats, they just retransmit and amplify the electrical signal. If a error or collision happens in one segment, repeaters retransmit and amplify also the error onto the other code segments.


Related Discussions:- Repeaters

Distant vector protocols, RIP and IGRP are Distance Vectoring protocols tha...

RIP and IGRP are Distance Vectoring protocols that send their whole routing tables to their neighbours. In some Cisco literature, EIGRP is listed as an 'advanced distance vector

Explain the meaning and use of the z-index property in dhtml, QUESTION ...

QUESTION (a) In CSS, each element in a document is considered to be in an invisible box. Give three ways how to make the box visible (b) (i) Explain the meaning and use of t

Explain the term- gateway, What is the Gateway A Gateway is a device li...

What is the Gateway A Gateway is a device like a mini or microcomputer capable of operating on a standalone basis but which also gives connection for communication with the oth

Mpi functions and environment, MPI contains hundreds of functions, a small ...

MPI contains hundreds of functions, a small subset of which is enough for most practical purposes. We shall talk about some of them in this unit. Functions for MPI Environment:

Application layer - fundamentals of networks, Application Layer The ap...

Application Layer The application layer provides  an  interface between  application  entities and the  users computer. This layer offers services to a variety of aspects of d

Network interface hardware, NETWORK INTERFACE HARDWARE:  CPU can't ope...

NETWORK INTERFACE HARDWARE:  CPU can't operate data at network speeds. So in order to connect to the network device systems use special purpose hardware for network connection

Banking industry, Will like to know what is the standard industrial practic...

Will like to know what is the standard industrial practice for a bank network design? Preferably with complete paper on the network design covering security, domain segregation, vi

Define topologies other than basic topologies, What are the popular topolog...

What are the popular topologies other than basic Topologies? Apart from basic topologies some other topologies worth considering are: mesh topology (each device linked to all o

Mechanical characteristics of RS232 interface, Q. Mechanical Characteristic...

Q. Mechanical Characteristics of RS232 interface? - 9-pin connector - 9-pin connector is more usually found in IBM-PC but it covers signals for asynchronous serial com

What is subnetting, Q. What is Subnetting ? Subnetting IP add...

Q. What is Subnetting ? Subnetting IP addressing is hierarchical First reach a device through its network id (netid) Then reach the host itself using the se

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