Thursday, 10 April 2014

Physical Components of a Network

http://www.networkworld.com/subnets/cisco/chapters/1587054620/graphics/01fig02.jpg
The physical components of a hardware devices which are mainly interconnected to the network of the computer. According to the size of the network the components are varies in the system but generally most of the computers consists basic part of components.

In a computer network there are around four major categories of a physical components:
  • Personal Computers’ (PCs): In the PCs they serve as endpoints in the network by receiving and sending the data.
  • Interconnections: In a network from one point to another for the transmission of data the interconnections are used by their components and this category consists and includes the components as follows.
•    NICs- Network Interface Cards which is translated from the data from which is produced by a computer into a certain format and it can be transmitted over a local network.
•    Network media mainly as wireless media or by cables, that which provides the means by the signals which are transmitted from one networked device into another.
•    Connections that which provide the various connections point in a media.
  • Switches: These are the devices which are protected by the network attachment by the end systems and by the intelligent switching of the data in between the local area network.
  • Routers: For choosing the best paths in between the networks the routers are interconnected.

Interpreting in a Network Diagram:

While in the description or in a designing a computer network there they uses the drawing and the diagram to describe the various components and there various physical components which are interconnected.

Common symbols are captured in the information related to the network for the planning, reference, and for troubleshooting the purposes by the network diagram. The information differs from one type of organization to the other organization and there details of that information also varies. In the network topology in a common are represented by the series of the lines and the icons.

The following diagram shows and describes the typical network diagram:
  • Internet and the WAN connections are represented by the cloud.
  • Router is represented by the cylinder with the arrows.
  • A workgroup switch was represented by the rectangular box with the arrows.
  • Server is represented by the tower PC.
  • A monitor and computer or a laptop are represented by an end user PC.
  • Ethernet link was represented by the straight line.
  • Serial link was represented by the A-Z shaped line.
http://www.networkworld.com/subnets/cisco/chapters/1587054620/graphics/01fig03.jpg

In this other sort of information are included in the space follows. And when considered an example it is mostly desirable for to identify an interface in the network of a device which was in the format of the s0/0/0 and for the serial interfaces or the fa0/0 in a Fast Ethernet Interface. And this a common for the inclusion in the network address in a segment of the format such as the 10.1.1.0/24, where in 10.1.1.0 that it indicates various address and also the /24 shows that the subnet of a mask.    



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