Troubleshooting LAN problems can be difficult because a variety
of hardware and software components may be involved and because
the problem impacting your system may originate in another part
of the network.
The first two sections in this chapter provide quick fix solutions
to common network problems. "Addressing Do's and Don'ts" identifies common
addressing errors made when new systems are added to the network. "Troubleshooting
Q and A" provides answers to the most frequently asked
troubleshooting questions. Look through the problems identified
in these sections to see if your problem fits into any of these categories.
If so, you may be able to quickly identify and recover from the problem
without any further investigation.
If, however, after looking through the following sections
on network addressing errors and frequently asked troubleshooting
questions, you are unable to identify your problem, proceed to the "100Base-T Checklist" to
have a general view of your system and its possible problems. Then
if you are still unable to identify your problem, proceed to the
troubleshooting flowcharts. The troubleshooting flowcharts provide
a logical sequence of steps to follow when troubleshooting LAN/9000.
Using the diagnostic flowcharts provided in this chapter, identify
whether the problem is with LAN/9000, any of the connectors, or if
it is in some other part of the LAN network. Verify your assumptions and,
it if is limited to LAN/9000 software and hardware, correct the problem.
Printable version
