Installing and Administering LAN/9000 Software

Chapter 4 65
Troubleshooting LAN/9000
Troubleshooting Overview
Troubleshooting Overview
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.