NS3000/iX Operations and Maintenance Reference Manual (36922-90039)

26 Chapter1
Overview of NS 3000/iX Operations
Troubleshooting Your Network
Troubleshooting Your Network
From time to time you may experience problems on your network.
Often, you can easily diagnose and correct the problems without the
need to contact a Hewlett-Packard service representative. You may
choose to perform some troubleshooting operations on your own,
following the guidelines provided in this manual.
Troubleshooting Process Overview
When problems occur, it is helpful to follow a logical process of
characterizing and identifying the problem so that you can determine
the appropriate course of action to take. Chapter 4, “Troubleshooting
Process,” of this manual suggests a process to follow when
troubleshooting problems with network connections.
Chapter 5, “Common Network Problems,” summarizes most of the
common types of problems that might occur on your network. Once you
have identified the problem following the process described in Chapter
4, “Troubleshooting Process,” use Chapter 5, “Common Network
Problems,” as a guide to the actions you can take to resolve the problem.
If you are unable to identify or resolve a network problem using the
information provided in Chapter 4, “Troubleshooting Process,” and
Chapter 5, “Common Network Problems,” of this manual, consult your
Hewlett-Packard service representative.
Tools
Hewlett-Packard provides a range of tools to help you perform line
verification or run software or hardware diagnostics. You run most of
the network diagnostic tools using the NETTOOL utility. NETTOOL
provides a set of core functions and an interface for running software
and line verification tools that were run standalone on earlier versions
of MPE. Help information is available when you use NETTOOL. You can
also develop your own tools to run as part of the NETTOOL package.
See Chapter 6, “Using NETTOOL,” for a complete discussion of
NETTOOL and instructions for using each of the NETTOOL diagnostics.