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Troubleshooting
Table A-1 describes how to troubleshoot problems with your network
and/or the Switch by monitoring the Switch’s LEDs.
Table A-1 Troubleshooting
Problem Action
Power LED is off ✔ Make sure the power adapter is connected to
the power outlet and is properly inserted into
the power connector on the switch.
✔ Determine if the power outlet is functional by
plugging another device into the receptacle.
Collision LED is
blinking constantly
Collisions are normal in Fast Ethernet net-
works; however, excessive collisions may indi-
cate that your network is overly congested.
✔ Make sure the workstation cables do not
exceed the maximum length of 100 meters.
✔ Make sure the workstation cables meet EIA/
TIA 568B specifications for Category 5 wiring.
✔ Make sure the total network diameter does not
exceed the maximum distance.
✔ Make sure there are no faulty Fast Ethernet
adapters or other equipment on the network.
FRCH1Book Page 1 Thursday, September 25, 1997 11:23 AM