Hello Skooter Blog readers. Today I talk about a Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX (8-Port 10/100M Fast Ethernet Desktop Switch (Auto MDI/MDIX)) acquired on DealExtreme, whose I buy already reported in another article. Switches, or switches in good Portuguese, devices are used in computer networks to forward frames (link layer packets) between devices. Switches na atuam link layer (second layer reference model ISO / OSI), forwarding frames according to the destination address (the Ethernet MAC endereço redes).
Switches are more “Smart” do that hubs because they learn for themselves which port should forward the frames destined to each MAC address. Hubs apenas replicam o conteúdo que recebem de uma porta em todas as outras portas. Switches do so only for broadcast frames (broadcast) or when you know which is the port where the recipient can be framed. Whenever it receives a frame switch verifica o endereço MAC do remetente e anota, in an internal table, this MAC address and port where the picture came. From Dai, frames destined to this MAC address will be forwarded only to the port where it is.
Exemplifying: The computer is on port 1 and computer B is on port 2. When A sends a message to B, the switch primeiramente anotará que A está na porta 1 on your table. Then look for the same table B. How can not find it, ele deve fazer um broadcast do quadro recebido, in other words, send it to all ports in the hope that some of them are in B. When B receives the frame and sends a response to the, the switch ao receber o quadro anotará também que B está na porta 2, and seeing that the recipient is the, consult your table and know that A is at the door 1, so that the frame is only sent to the port 1.
The Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX utiliza o padrão Fast Ethernet, supporting devices operating at 10Mbps or 100Mbps. Devices that support Gigabit Ethernet can also be connected, obviously, but work with bandwidth “only” 100Mbps. The Switch é Auto MDI/MDIX, This implies that can be used both as direct cabling cables crossover, because he can identify them and use them the right way, causing a reversal in connectors, se for o caso. Are 8 ports to connect up to 8 devices.
O fabricante do Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX é a U-Link. The box is all in Chinese. I managed to identify a URL, but it is not working. The model is apparently CK-00127A. The Switch tem um LED que indica quando está ligado/desligado e outros 8 LEDs that indicate the status of each port. Access LED means you have um device connected, and flashing LED means that the device is sending / data recebendo.
At the rear there are 8 RJ45 plug entries and an entry for a source of 9V. The source that comes with the product is a 5V supply and 2A. The discrepancy between the voltage noted on switch e a anotada na fonte aparentemente não causa nenhum problema no funcionamento. Na parte inferior do Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX há pés de borracha para assentá-lo sobre móveis, and also holes to hang it on the wall using two screws, de forma que podemos instalá-lo da maneira que desejarmos. A fonte utiliza dois plugs planos em paralelo, the U.S. standard, therefore not serve in the new Brazilian standard, então certifique-se de comprar também um Power Plug Adapter for Redondo Plano (Flat to Round Power Plug Converter) caso não tenha tomada que aceite o padrão norte-americano para ligar o Switch.
I am using Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX em conjunto com um Pair EP-Rede Adapters Powerline 200Mbps HomePlug PLC5506 para levar a rede até a sala de TV. O cabo do EP-Rede adapter HomePlug PLC5506 se conecta a uma das portas do Switch Fast Ethernet 10/100Mbps. In other three ports are connected to TV, o Playstation 3 e o WD TV Live, so that all connected ficam in the network at the same time, via Switch. I have not done any performance testing, or any other more sophisticated test. Apenas posso afirmar que o Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX funciona perfeitamente para atender minhas necessidades.
Besides version 8 doors, There is also a version 5 doors for those who want to save a bit more. I thought it would not be worth, after all, the price difference is only $2,10 USD (U.S. dollars two). I'm currently using only 4 doors, should I just use a fifth to connect a Blu-ray player. With version 8 doors ainda me restarão 3 ports for future devices. The trend is that more and more devices have option for a network, then it is always good to have some slack.
And I'm ending here the article on Switch Fast Ethernet 10/100Mbps com 8 ports Auto MDI / MDIX . If you also want to shop in DealExtreme, directly from Hong Kong, click here, good shopping.