【 Weak current College 】 LAN optimization of six of the cheats

Reasonable to set the server's hard disk

Use the LAN Office users, often using the network to print materials and access to the file. For some reason, network access may not be working properly at this time, we tend to be incorrectly believe that result in reduced network speed may be a network bottleneck happened some equipment, such as network cards, switches, hubs, etc, in fact, the greatest impact on the network or server hard disk speed. Therefore properly configured network server's hard disk, the entire LAN network performance is greatly improved.


According to the rules for connection

We all know that connect LAN every computer is achieved with twisted pairs, but does not use twisted pair to two computers simply connect each other, we can achieve the communication objectives, we must follow certain rules for wired connections. I have tried two are 100 metres away from the computer to connect with twisted pairs, enabling communication, but no matter what efforts does not connect successfully, then the expert advice, twisted pair connection distance must not exceed 100 m. In addition, if you need to connect more than 100 meters of the two computers, you must use a conversion device. In the connect conversion devices and switches, we also have a jumper. This is because Ethernet is used in General for two pair, arranged in 1, 2, 3, 6, if you are not using two pairs of lines, but the original pairing using separate use of the line, they would form crosstalk, network performance has a greater impact. 10M network environment the situation is not apparent, 100M network environment if the flow is large or long distance, the network will be unable to Unicom.

Proper use of the "bridge"-type equipment

The "bridge"-devices are usually used in the same segment of network devices, routers are used for different sections of the network devices. I have installed the unit to which a microwave networking equipment, physical device after online debugging, Unicom Server always prompts the current segment number should be the other side of the segment number. The server network segments, and each other to consistent, Server alarm disappeared. ! This is set to have a bridge in the nature of the device. Later and another place for installation of microwave networking equipment, swap the other a manufacturer's product, in the connection before we could be on either side of the segment number changed to consistent, when loaded on the device, server and alert: current routing errors. Modify the side segments, alarm disappeared. This shows that distinguish the "Routing" and "bridge" of the device, set the network parameters is important.

The strict implementation of grounding requirements

As a result of the transfer in the local area network are some of the weak signal, if the operation is slightly improperly or not in accordance with the network device specific operational requirements to do so, it may appear in the networking, serious interference information can cause the entire network is blocked. Especially some network switching equipment, as it involves a remote line, on the ground of the very strong, otherwise the network devices will not reach the required connection rate, resulting in a networking process produces a variety of inexplicable symptoms. Had no intention of the router's power plug in the AC outlet, the result is not 128KDDN hotline and Internet connectivity. The Bureau to examine the lines are quite normal, check the router's zero voltage, found no, change back to the socket on the UPS, everything returned to normal. In addition, the router's power plug grounding-broken, causing packet loss, often do Ping connection is good and bad, replace the power supply cable is all normal. Thus, we use a network device, be sure to the conditions provided for in the device, it will give our work brings a lot of trouble.

Use good quality and speed of network card

In the local area network, between the computer and the computer cannot communicate is quite normal, causing the failure cause there may be many. I have statistics, LAN failures related to most of the network card or adapter is not correctly installed or the network cable is bad, but may be older network cards, could not be properly recognized by the computer and also have a network adapter installed on the server, and withstand the impact of large capacity data, end-of-life, etc. Therefore, in order to avoid this phenomenon, we must be willing to invest, if the network card is installed on the server, be sure to use good quality network card, because the server is not run continuously, only the quality of the network card to work for "for a long time," because the server transmit data capacity is large, so we purchased card capacity must match in order to achieve "good horse with good saddle."

Reasonable set switches

Switch is a LAN an important data communications equipment, correct use of switch reasonably also can improve network performance in data transmission. I had to switch ports configured for full duplex, and the server 100M installed a model for the network card, install later Intel100MEISA all normal, but in large discharge load data transfer, the speed becomes very slow, and finally found this card does not support full duplex. The switch ports to half-duplex, fault disappears. This shows the switch port and network card speed and duplex mode must be consistent. There are many adaptive network adapter and the switch, follow the principle that should be properly adapted to the speed and duplex mode, but in fact, due to the inconsistency of the brand, are often not correctly to achieve full-duplex mode. Obviously the server network card to full-duplex, but switch duplex lamp is not lit, the only manual force setting. Therefore, we set up a network device parameters, be sure to reference the server or other network device on the workstation to enable parameters of each device matching jobs.