Will it be much better if the Internet caf has a network card, and whether it has to be a hub Thank

From the perspective of working mode, the hub is a broadcast mode, that is to say, when a certain port of the hub is working, all other ports have a name to listen to the information, which is prone to broadcast storms. When the network is large, the network performance will be greatly affected, so how to avoid this phenomenon? The switch can play this role, when the switch is working, only the port that makes the request and the destination port respond to each other without affecting the other ports, then the switch can isolate the collision domain and effectively suppress the generation of broadcast storms.

From the perspective of bandwidth, no matter how many ports the hub has, all ports share a bandwidth, and only two ports can transmit data at the same time, and the other ports can only wait; At the same time, the hub can only work in half-duplex mode. For switches, each port has an exclusive bandwidth, when two ports work, it does not affect the work of other ports, and the switch can work in both half-duplex mode and full-duplex mode.

The above is the information found, which I will add below).

And, because the hub is made up of broadcasts, each port is able to receive the signal. Therefore, the capture of signals is very easy for non-destination ports. So, hubs are not as secure as switches.

In terms of speed, the switch hub.

Stability, switch hubs.

Security-wise, switch hubs.

It is recommended to use a switch because ** is also considered high.

There are about 200 D-Link switches with 8 ports.

There are about 390 D-Link switches with 16 ports.

There are about 800 D-Link switches with 24 ports.

If you have 100 computers, it is recommended to use D-Link, 3com, Cisco or better switches to avoid network storms.

If you have < 10 computers, it doesn't matter what you use.

Just use a switch. The hub doesn't work well anymore.

Internet cafes are where money is made.

It's easy to have problems with a hub, and if something goes wrong, how can you make money.

Switches are now commonplace, and they're not as outrageously high as they were around 2000. Let's use a switch.

No matter how much it is best to use the hub, so that the bandwidth is automatically allocated to each unit. It also saves resources. **Same but *** bad but very bad, the hub can't solve the automatic allocation of bandwidth.

No matter how many switches are used, the resources of Internet cafes are shared, the hub cannot meet the requirements at all, and the switch should also be better

Hello, it depends on the size of the hub, which is the hub. Its function can be simply understood as connecting some machines to form a beam LAN. Switches (a.k.a. switched hubs) do much the same thing as hubs.

However, there is a difference in performance: hubs work in the style of shared bandwidth, while switches use dedicated bandwidth. In this way, when there are many machines or a large amount of data, the two will be more obvious.

The router is obviously different from the above two, its role is to connect different network segments and find the most suitable path for data transmission in the network orange simple fiber, it can be said that under normal circumstances, individual user needs are not large. The router is generated after the switch, just like the switch is generated after the hub, so the router and the switch are also related to a certain extent, and they are not completely independent devices. The router mainly overcomes the shortcoming that the switch cannot route ** packets.

Generally, large Internet cafes, regular, many use switches, and the firewall function of the router itself is still OK.

Trouble, thanks!

Absolutely, you can use a hub to connect two computers, you can dial up to connect to the Internet, or you can share the Internet through one hub to the other, provided your network operator doesn't limit sharing! As for the restrictions of some operators, it can still be shared through some software! There is no limit to the length of the network cable, as long as the main line can be connected to the hub and the two computers can be connected to the hub separately!

A hub is a bandwidth shared by several machines.

It's not the same as routing.

It is recommended that you change the router in your dormitory.

You don't need to change routers, you can change to switches, which is cheaper and can automatically adjust the bandwidth shared.

Shut down the hub or switch for initialization.

Key equipment: switch or router, now these two devices are difficult to define their functions in detail, can meet your requirements, the hub will divide the network speed equally, can not be used, otherwise it will be very slow, the above two devices are recommended.

Routers and switches are a must, and hubs are generally not needed now. Switches instead of hubs.

The hub is still a switch, and there should be no problem with the switch, but it is inefficient.

At present, Internet cafes mostly use star networks, which means that all switches are connected to a high-performance main switch.

Although there are two types of hub cascading mode: dedicated "uplink" port mode and ordinary port mode, it is best to choose the "uplink port" mode from the perspective of network connection distance, because this connection mode can ensure the bandwidth and signal strength of the next hub to the greatest extent, and the signal attenuation is serious if the ordinary port is used for expansion, and the bandwidth is greatly affected by the network, especially the multi-level cascaded network should be paid attention to.

Are you sure it's cascade?

Why Cascade?

These hubs are on the same level.

You connect each switch to the primary switch.