Term
| determining the cause of the problem. step 1 |
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Definition
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Term
| determining the cause of the problem. step 2 |
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Definition
| create a list of network elements that are possible causes of the problem |
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| determining the cause of the problem. step 3 |
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Definition
| test the most likely cause |
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Term
| determining the cause of the problem. step 4 |
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Definition
| continue testing until you identify the problem's actual cause |
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Term
| determining the cause of the problem. step 5 |
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Definition
| repair or replace the faulty element |
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Definition
| created when two cables are run in parallel and the signal on one cable interferes with the other |
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Definition
| using cables over too long a distance, poor connections, Bad insulation, a high level of cross talk, or EMI can all increase attenuation |
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Definition
| when nodes attempt to access shared media simultaneously |
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Term
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Definition
| two nodes of an electrical circuit that are meant to be at different voltages creating a low-resistance connection |
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Term
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Definition
| symptom of open impedance mismatch, which is caused by a mismatch in electrical resistance. an imperfection in the wire can cause a change in impedance, which can send the signal back the way it came |
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Term
| electromagnetic interference, EMI |
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Definition
| crackling, humming, and static. low throughput, network degradation, and poor voice quality |
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Definition
| created when modules in Small form-factor pluggable (SFPs) or gigabit interface convertors (GBIC) get corrupted, this could result in no communication and the console's error lights illuminating |
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Definition
| are the cause of many network connectivity problems, can be easily damaged especially if the incorrect type of cable has been used or if tis been installed incorrectly |
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Term
| to reduce the effects of cross-talk |
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Definition
use twisted pair cabling, and maintain proper distance between cables.
digital signals are less susceptible to cross talk |
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Term
| to reduce attenuation in wired networks |
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Definition
| reduce the distance between communicating nodes where possible, by adding more access points and signal boosters. |
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Term
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Definition
upgrade the network infrastructure by replacing hubs with switches on wired networks.
on wireless networks using additional access points on different channel can help |
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Term
| to reduce the effects of electrical short |
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Definition
| use a time-domain reflectometer, or TDR, to detect an short, you can replace cables and connectors that are faulty |
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Term
| to reduce the effect of an echo |
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Definition
| use an TDR to detect impedance, collect and review data, interpret the symptoms, and determine the root cause |
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Term
| to reduce the effects of EMI |
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Definition
| attempt to remove its source. this may entail simply turning off competing devices or relocating them, also use a spectrum analyzer to test areas for interference prior to deploying devices |
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Term
| to reduce the effects of cable problems |
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Definition
move cables off the floor.
use a cable tester to detect many type of cable promblems |
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