It is inevitable that switching equipment carries breakdown appears in travel now, but ought to undertake quickly handling after occurrence breakdown, as soon as possible failure isolation dot, remove trouble, this is the duty that net canal personnel should use up. But should accomplish this, the kind that must know switching equipment trouble and the capacity that have pair of breakdown to undertake analysis and processing. For this, the breakdown type that the text often appears with respect to switching equipment and the method that analyse a platoon to check have brief introduction. 　 of breakdown of power source of  　 is not stabilized as a result of exterior power supply, ageing of road of power supply cord or the reason such as be struck by lightning is brought about power source damages or fan stops turn, as a result cannot work normally. Because power source cause causes the damage of other part inside machine,perhaps can make switching equipment appears problem. If the POWER indicator light on switching equipment face plate is of green, expressing is normal; If this indicator light destroyed, explain switching equipment does not have normal power supply. This kind of problem very discover easily, very light also legibility definitely, also be at the same time most prevent easily. Be aimed at this kind of breakdown, the supply that should have made exterior power supply above all works, provide independent power source commonly through introducing independent electric line of force, add manostat to avoid instantaneous high pressure or low-pressure appearance. If the condition agrees, can add UPS (UPS) the normal power supply that will assure switching equipment, some UPS provide stabilized voltage function, and some doing not have, want to pay attention to when the choice. Avoid in what major installs inside the computer room thunder measure, will avoid the thunder harm to switching equipment. A lot of is do now avoid the professional corporation of thunder project, can consider when executive network wiring. Port breakdown 　 this is the commonnest hardware breakdown, no matter be the RJ-45 port of fiber-optic port or double skeining thread, inserting unplug must take care when contact. If do not take care a fiber-optic outlet is flyblown, the likelihood brings about fiber-optic port to pollute and cannot correspond normally. We often see a lot of people like electrified insert unplug contact, theoretic telling is possible, but the breakdown occurence rate that also raised port inadvertently so. Not careful when carry, cause port physics damage possibly also. If buy crystal head dimension slants big, when inserting switching equipment, also destroy port easily. In addition, if receive the double skeining thread on port to one paragraph is exposed,be outdoor, in case this cable is hit by thunder, can bring about place to be attacked even switching equipment port bad, perhaps cause the loss that cannot expect more. Usually, port breakdown is certain or attaint of a few port. So, after the breakdown that links the computer besides port place in the platoon, what can connect port through changing, will decide whether do its damage. Encounter this kind of trouble, can shut in power source hind, clean port with alcohol tampon. If port is damaged really, that can change only port. Switching equipment of module breakdown 　 is comprise by a lot of module, for instance: Pile module, processing module (also make control module) , patulous module. The odds that these module malfunction is very small, once appear,do not pass problem, can suffer huge pecuniary loss. If insert,unplug do not take care when module, when perhaps carrying switching equipment, be collided, or power supply is not steady wait for a circumstance, bring about the happening of this kind of breakdown possibly. Of course above these 3 mentioned module have exterior interface, identify easily quite, some indicator light that still can go up through module will discern breakdown. For instance: There is a compressed echelon port on pile module, an interface that is similar to USB perhaps is on some switching equipment. There is opening of a CONSOLE on processing module, use at be in charge of the computer to establish link with the net, convenient processing. If if expand module is fiber-optic,joining, can have a pair of fiber-optic interface. When removing this kind of trouble, ensure the power source of switching equipment and module furnishs normally above all, check each module to whether be inserted in next correct locally, the wire cable that checks join module finally is normal. When join administers module, consider it to whether use join rate of the regulation even, whether to have odd even desired result, whether data sheds the element such as control. Join is patulous when module, whether does need examination match communication pattern, for instance: Use mode of full duplex operation or pattern of half duplex operation. If affirm module,have trouble of course, settlement method has only, that ought to contact supply business to undertake changing instantly namely.

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