About the maintenance of Internet cafes, the following Xiaobian talk about Internet cafes maintenance process should pay attention to the problem. Network pressure clamp

First, the computer network attribute configuration of Internet bar

TCP/IP protocol configuration error, will cause the Internet bar network can not connect. The main check is the computer's IP address, subnet mask, gateway and DNS server settings to be correct, but also to match. There is no way to use the IP address of the network segment, and the gateway is another virtual network, especially in the VLAN lan.

Some Internet cafe administrators configure the IP configuration on the "TCP/IP-> dial up network adapter" instead of the network adapter installed on the computer. In fact, this setup is futile, the network card does not really configure the IP address and other information, of course, the network will not pass. In addition users can call: "why I could not find a computer with the function of sharing", this is actually his computer in the network file and print sharing does not allow other users to access the file "option.

Two, twisted pair production

Before the Internet Network Xiaobian introduced twisted pair approach, the main cable is used in Gigabit Ethernet twisted pair, fault in the network is composed of more than half of the twisted pair of bad contact, disconnect or line sequence does not meet the standard by.

Twisted pair using standard into EIA/TIA-568B (line order: white orange, orange, green, white, blue, blue and white, green, brown, white, brown) and EIA/TIA-568A (line order: green and white, green, orange, white, blue, blue and white, orange, brown and white, brown), we can see from the line sequence, to ensure that the 1, 2 and 3, 6 and two of the same set of lines, and twisted, thus preventing crosstalk, especially in the 100M transmission rate and distance of nearly 100 meters, can reduce and prevent the loss of data signal attenuation.

As the saying goes, "work is good to do things, must first benefit its device", good tools can also play a multiplier effect, cable tester and AMP line clamp is the most basic line tools.

Three. Network document data

Network document data include network design scheme, network wiring diagram, distribution rack comparison table, user access port table, switch port configuration table, etc.. They can reduce unnecessary hassles and confusion, and other people can also eliminate some failures and increase Internet users in the context of these data, and there is no need to drag you back from the holiday site.

"A good memory is worse than a rotten pen". When you face a hundred jumpers in a cabinet, you will realize the importance of the data. Of course, changes in network users, switch configuration changes, but also timely update and update these data, otherwise it becomes a bunch of furnishings.

Four, the electrical environment of Internet cafes:

The room is on the ground to ground building unified, in fact this method has limitations, there is a voltage difference between machine and machine, it will be damaged by lightning caused by equipment or between a wide area network and machine connected by coaxial cable transmission loss of data communication, good and bad. At present, the ring connection method is adopted to connect the ground wire of the machine room, and the ground wire of all the equipment in the machine room is connected into a closed ring, and then connected to the ground wire of the building, so that the machine is in a plane of equal potential.

When the network failure, network management is most likely to ignore the power failure, we often think that as long as there is no power failure, the power supply is no problem, in fact, this idea is wrong. If you encounter a puzzling fault, you'd better check the power supply first