Troubleshooting; Basic Troubleshooting Tips - SMC Networks 6624FMSC - annexe 1 Installation Manual

Troubleshooting

This chapter describes how to troubleshoot your SMC6624M switch. Note that
this document describes troubleshooting mostly from a hardware perspective.
You can perform more in-depth troubleshooting on the SMC6624M switch
using the software tools available with the switch, including the full-featured
console interface, the built-in web browser interface, and EliteView, the
SNMP-based network management tool. See the Troubleshooting chapter of
the Management Guide included with the switch for more information.
This chapter describes the following:
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Basic Troubleshooting Tips

Most problems are caused by the following situations. Check for these items
first when starting your troubleshooting:
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basic troubleshooting tips (page 3-1)
diagnosing with the LEDs (page 3-4)
proactive networking tools (page 3-8)
hardware diagnostic tests (page 3-9)
restoring the factory default configuration (page 3-11)
downloading new code (page 3-12)
SMC Technical Support Services (page 3-13)
Faulty or loose cables. Look for loose or obviously faulty connections.
If they appear to be OK, make sure the connections are snug. If that does
not correct the problem, try a different cable.
Non-standard cables. Non-standard and miswired cables may cause
network collisions and other network problems, and can seriously impair
network performance. Use a new correctly-wired cable or compare your
cable to the cable in appendix B, "Cables and Connectors" for pinouts and
correct cable wiring. A category 5 cable tester is a recommended tool for
every 100Base-TX and 1000Base-T network installation.
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