Understanding switches and Switch functions in Computer Networks

Understanding switches and Switch functions in Computer Networks

Notivku, Below we will discuss the understanding of switches and Switch functions in Computer Networks. As we know that the weakness of the HUB is not able to know the source and receiver of data, that is if there is data that enters the data directly on the broadcast of all devices or computers installed on the HUB port. This will be different with the name Switch.

The SWITCH ?

Switch is a device or Device that functions as a regulator and divider of data signals from a computer to another computer connected to the device, the function is the same as the HUB function, the difference is that the switch can make settings in the form of a data packet filter process. Usually each port on the switch can be set so that it can be determined which ports can be connected to each other. Switches operate at layer two (Data Link Layer) of the OSI model.

Like a HUB, a switch has many ports that are used to connect computers. The number of ports contained in the Switch also varies, 8 ports, 16 ports, 24 ports and so on. Switches are presented for Ethernet computers, each of the ports contained in the switch is possible to set the support speed & duflex or support the speed of ethernetnya, for example, the speed of 10 Mbps, 100Mbps, 1000MBps or can also be set auto. The ability of the Switch to pass data to only the intended device can save network bandwidth and data packets that pass through the Switch will be more gated than those passed through the HUB.

Advantages of switches over hubs

Switches are also called smart hubs where the work of Swicth is not only sending or receiving signals, but also processing information at the data link layer. The information is checked in the form of the mac Address of each computer and connected devices. The Switch uses a selection system against all devices or computers connected to it. selected by the switch in the form of the MAC Address of the computer or network device connected. Because the switch selects in advance which mac address is the destination, this makes it transmit data faster. Unlike a hub that sends signals across, it doesn't matter which device the data is being sent to.

With the above data, it is very reasonable well, if the HUB began to be abandoned by computer network users and the price of the Switch itself is definitely more expensive than the HUB

Thus the Understanding switches and Switch functions in Computer Networks, may be useful and can provide knowledge of computer network science to all of us.