Networking

Networking

In information technology, networking is the construction, design, and use of a network, including the physical (cabling, hub, bridge, switch, router, and so forth), the selection and use of telecommunication protocol and computer software for using and managing the network, and the establishment of operation policies and procedures related to the network.

So you want to set up a computer network. Right here we have two of computers. What I need is something like this, A router has a bunch of ports in the back that I can connect to multiple computers. And it also works wireless. Now what the router is doing right now is giving both of the computers something called ip addresses which is their numbers on the network.

Network covers whole world. The all people used to network.

Collection of network devices connected the internet with optical fiber or wireless links. These devices are router, switch, hub and bridge. The router connects two or more network and forwards data packet between computer network

Hub is common connection point for devices in a network. Hubs are commonly used to connect segments of LAN.

Switch is a smarter version of a hub and forwards each incoming data frame to the correct port.

Router connects two or more networks and forwards data based on logical address between computer.

Bridge is a connectivity device that forwards data based on a physical address.

Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire lobe.

 Some of the different networks based on size area:

PAN- Personal Area Network

LAN- local area network

MAN- metropolitan area network

WAN- wide area network

In terms of purpose many networks can be considered general purpose which means they are used for everything from sending files to a printer to accessing the internet.

            Topology is design of network virtual shape or structure.

There are basic types of topology.

-bus

-ring

-star

-tree

-mesh

We can understand topology is sketch of network and design theory of networks. But it is more suitable for bigger than small or home network.

Standard topologies gives you a better understanding of important concepts like hubs, broadcasts and routes.

Network troubleshooting

Many problems are easy to fix without help.

-reconnect any loose CAT-5 cable connections

-Check the router

- Investigate IP address issues

- Turn all equipment off for a full minute and then restart.