Four Common Faults and solutions for Internet cafe Switches

It is inevitable that an Internet cafe switch encounters a fault during its operation. Due to the various fault phenomena of the switch, there are no fixed troubleshooting steps. Some faults often have a clear direction and can be identified at a glance, but some faults cannot be started. We have summarized the four types of failures that are common in Internet cafe network switches and their solutions, including faults caused by ports, cables, power supplies, and backboards. We hope this will help you.

Port fault

This is the most common hardware faults when using the Internet cafe switch, small make up to remind everyone: whether it is fiber port or twisted pair RJ-45 port, in the plug-in connector must be careful. If the optical fiber plug is accidentally soiled, the optical fiber port may be contaminated and cannot communicate normally. We often see that many people like the live plugging connector, which is theoretically acceptable, but this also inadvertently increases the port failure rate.

It may also cause physical damage to the port. If the size of the purchased crystal head is too large, the port is easily damaged when the switch is inserted. In addition, if a section of twisted pair wires connected to a port is exposed to the outside, and the cable is struck by lightning, the connected switch port may be damaged or cause more unexpected damage.

Solution: Generally, one or more ports are damaged. Therefore, after the failure of the computer connected to the port is ruled out, you can change the connected port to determine whether it is damaged. When such a fault occurs, you can use an alcohol cotton ball to clean the port after the power is off. If the port is damaged, you can only change the port.

Cable Fault

In theory, such faults do not belong to the switch itself. However, in actual use, cable faults often make the switch system or port abnormal, therefore, such faults are also classified as switch hardware faults. For example, if the connection is not tight, the cables are arranged incorrectly or in an irregular order during cable preparation. When connecting the cables, the cables should be connected using a straight line. The two optical fiber cables in the optical fiber cables are staggered, network loops are caused by incorrect line connections.

Solution: from the above several hardware faults, poor data center environments can easily lead to various hardware faults, so when we build data centers, we must first build the anti-ray grounding and power supply, indoor temperature, indoor humidity, anti-electromagnetic interference, anti-static and other environments to provide a good environment for the normal operation of network equipment.

Power Supply Fault

The power supply is damaged or the fan is stopped due to unstable external power supply, aging of power supply lines, or lightning strikes. Or the switch may be faulty if other components in the machine are damaged due to power supply. If the POWER indicator on the switch panel is green, it indicates that the switch is normal. If the indicator is off, it indicates that the switch is not properly powered. Such problems can be easily discovered, solved, and easily prevented.

Solution: for such faults, the external power supply should be well done first. Generally, an independent power line is introduced to provide an independent power supply and a voltage regulator is added to avoid transient high voltage or low voltage.

If conditions permit, you can add UPS (uninterruptible power supply) to ensure the normal power supply of the switch. Some UPS provide the regulator function, while others do not. Pay attention to the selection. Set up professional lightning protection measures in the IDC room to avoid lightning damage to the switch. Now there are many professional companies engaged in anti-ray engineering, which can be considered when implementing network cabling.

Backboard fault

Each module of the vswitch is connected to the backboard. If the environment is wet, the circuit board is short-circuited by the tide, or the components are damaged due to high temperature, lightning, and other factors, the circuit board will not work properly. For example, if the heat dissipation performance is poor or the ambient temperature is too high, the temperature in the machine increases, resulting in component burning.

Solution: when the external power supply is normal, if the internal modules of the switch cannot work normally, the backboard may be broken. In this case, even the electrical maintenance engineer, i'm afraid I have no plans. The only way is to change the backplane.