Hub & switch

Hey ! Let's watch a video before read the details below .

A small introduction between hubs, switches and routers before go to the more details information in my blog. Hubs, switch and router are devices that allow us to create networks and connect those networks to one another. Here have a example of video to explain how they work and what their individual differences are. I hopes you all can clearly understand the concepts between them with this concise ,explanatory and didactic video.
​
                                                       HAVE A NICE DAY !

HUB

  1. A hub is a networking device that connects computers together to make a Local Area Network (LAN).
  2. It is liked a common connection point for devices in a network.  
  3. A hub contains multiple ports for a number of computers to connect.
  4. It transmit all the data received to all nod connected to the hub regardless which device to sent the data to.
​

SWITCH

Why the switch look similarly to a hub ?
  1. Yes,because it's functions like a hub, is a device that connects computers together to make a Local Area Network (LAN).
  2. Switch is a control unit that turns the flow of electricity on or off on a circuit.
  3. It is more advanced and more intelligent than a hub because a switch can send data to the devices that need it or request it instead of send to all devices. ​
5.     The disadvantage of hub is there have a lots of extra network traffic and therefore the network is less efficient.6.    The typically use of a hub is at the centre of a star network (as shown in the figure 12).
7.      This shows that the hub-based networks are not  secure since the data will send to all computers.
8.      It is a passive device because it does not using software.​
How a switch send data to certain devices?
  1. It checks who it is addressed to, and only send it to the specific computer.
  2. By using the network switch, it can obviously reduces the network traffic so that the data transmission through the network will be more efficient.
  3. Other than that, the used of switches are more secure than hubs but also a little bit more expensive than the hub.
  4. Furthermore, network switch is an active device with the use of software to configure and manage the network traffic.

HUB & SWITCH

Figure 11 Ethernet Hub
Figure 12 The hub connects the all client with the server
​
Figure 13 Switch
​
Figure 14 A network switch that connects all the network hardware together
​