When creating a LAN in our company , some elements necessary to optimally configure arise. Surely you've heard of them on more than one occasion: hub, switch, repeater, router . Each one has different characteristics and serves for a different thing.
The target on a computer network between computers is that the signal transmission is done in the most appropriate way . What interests us as users is that the network works quickly, take advantage of the space and
In this article I will focus only on two elements: the hub and the switch.
What is a hub
As the name suggests, it is a multiport hub that can connect different devices. It is often used in local home networks to connect different devices in a computer network. You will see that there are a few ports for connecting devices on the network. When you do, the signal that the hub receives through the station (a computer) can also reach other connected devices.
For example, with the signal from the Internet cable. The problem is that the signal is transmitted through all ports . If a hub say that it has 7 ports, it is being transmitted to all at once, whether or not the devices are turned on. This is something that has its drawbacks as it can create collisions if there is more than one computer on.
Also, if connect devices that are more or less quickly (eg, a computer and a printer), the hub is adapted to having lower network speed . That is why the hub or "hub" is deprecated, although it is still used in home networks. You will now see that there are many hubs of 3 or 4 USB ports, very simple and cheap.
What is a switch or switch?
Unlike the hub, the switch (switch) can detect which devices are connected , so that only transmits the signal to those who are active. It is also able to recognize the MAC addresses of the devices, so when connecting them you can know which are faster and slower, so that it has a better performance in terms of speed and performance.
That allows us to use them for computer networks more complicated, as a star network with structured cable which different computer networks are connected. Only in networks where several switches are used is the danger of loops, or loops of network, when information can be transmitted in different ways.
In either case, as long as they will be created in the company computer networks with multiple devices, it is usually advisable to use a switch or switch in a network of structured wire .
How is your company's computer network? Do you use hubs or switches? I'm waiting for your comments!
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