Troubleshooting of Common Faults of private switches for Internet Bars

To this end, This article briefly introduces the fault types and troubleshooting methods that are often presented by the dedicated vswitches of the network bar.

Power Supply Problems

Because the external power supply stability is not good, power supply line aging or lightning strikes and other reasons lead to power damage or fan stop, so that the normal task is not allowed. Perhaps because of the power supply, the damage to other components in the machine will cause problems in the dedicated switch of the network bar.

If the POWER indicator on the panel of the vswitch is green, it is revealed that the performance is normal. If the indicator is off, it indicates that the vswitch does not provide normal POWER. Such problems can be easily discovered, handled, and easily prevented.

In view of this kind of problem, first of all should do a good job in the supply of external power supply tasks, ordinary after the introduction of independent power lines to supply independent power supply, and add a voltage regulator to prevent high voltage or low voltage scene during compaction. If the premise is agreed, you can add UPS (discontinuous power supply) to ensure the normal power supply of the dedicated switch for the network bar, some UPS supply regulator function, and some do not, when choosing to pay attention.

Set up professional lightning protection methods in the IDC room to prevent lightning damage to the dedicated Switches of the Internet bar. At present, there are a lot of professional companies engaged in anti-ray engineering, you can think about the implementation of network wiring.

Port faults

This is the most often seen hardware problems, whether it is fiber port still twisted pair RJ-45 port, in the plug-in connector must be careful. If you accidentally make the optical fiber plug dirty, it can lead to contamination of the optical fiber port and cannot communicate normally. We often see a lot of people like to live plugging connector, theoretically speaking, but this is also inadvertently added the port fault rate. When handling, it can also lead to physical damage to the port.

If the size of the crystal head purchased is too large, it is easy to destroy the port when it is inserted into the private switch of the network bar. In addition, if a section of twisted pair wires connected to the port is exposed outside, in case the cable is hit by lightning, it will lead to the broken port of the dedicated switch for connected bars, it may cause more unexpected damages.

Under normal circumstances, a port fault occurs when one or more ports are damaged. Therefore, after clearing the problem of the computer connected to the port, you can change the connected port to identify whether the port is damaged. When encountering such problems, you can use alcohol cotton balls to clean the port after the power supply is closed. If the port is damaged, you can only change the port.

Cable faults

In fact, this kind of problem is theoretically not a problem of the proprietary switch of the Internet bar. However, in practice, cable problems often lead to abnormal tasks of the system or port of the private switch of the Internet bar, therefore, this type of fault is also classified as the hardware fault of the dedicated switch for the Internet bar. For example, the Connector Plug-in is not tight, and the display error may not be standard during cable manufacturing. When the cable is connected, it should be interspersed with cables, but the direct connections are used. The two optical fiber cables in the optical fiber cables are intertwined, incorrect line connections lead to network loops.

From the above several hardware faults, the data center is not good, it is easy to cause all kinds of hardware faults, so when we build the data center, it is necessary to first set up the anti-ray grounding and power supply, indoor temperature, indoor humidity, anti-electromagnetic interference, anti-static and other conditions, to provide excellent conditions for the normal tasks of network equipment.

Inadequate Equipment

Beginners are not familiar with proprietary vswitches. Perhaps because of the different types of proprietary vswitches, administrators often encounter equipment errors when equipped with proprietary vswitches. For example, the VLAN division is not accurate, resulting in poor network, the port is mistakenly closed, the form of the private switch and nic equipment mismatch and other reasons. This kind of problem is sometimes difficult to find and the demand will inevitably accumulate. If you cannot ensure that your equipment is faulty, first restore the factory to acquiesce to the equipment and then the equipment step by step.

It is best to read the imitation orders before equipment, which is also one of the habits of network management. Each private switch has a specific device manual and user manual, which are explained in detail in each module. Because many manuals for CEN vswitches are written in English, users with poor English skills can consult with the supplier's engineers and then prepare detailed equipment.

A Nic may have a port attack problem, which can stimulate the broadcast storm. Because the private switch of the network bar can only cut the conflict domain, but cannot cut the broadcast domain (without VLAN division), when the number of broadcast packets accounts for 30% of the total communication, the transmission efficiency of the network is obviously reduced.

Summary:

Because the network bar dedicated switch fault scene is diverse, there is no fixed cleaning pace, and some problems often have a clear bias, at a glance can be identified. Therefore, it can only be analyzed in detail based on the detailed situation. Of course, no matter what the problem is, it is a tough task for a new network administrator, it is necessary to accumulate experiences in daily tasks. Every time you get a problem, you will focus on recalling the source and solution of the problem. It can better complete network switching tasks.