HP Auto Port Aggregation Administrator's Guide HP-UX 11i v3 (766140-001, March 2014)

6 Troubleshooting HP APA
This chapter contains a diagnostic map to help you solve problems that might occur when you use
HP APA. Use this chapter with the appropriate HP and third-party switch documentation to solve
as many problems as possible at your level.
Operation
Network problems can occur for a number of reasons. The diagnostic map in this chapter help
you to isolate the problem. The following figure explains how to use the diagnostic map:
After you isolate the problem, the map refers you to other chapters for instructions on using the
various problem solving tools and utilities. The map also refers you to other manuals for more
complete diagnostic information for particular devices and software products.
You might experience problems that are not documented in this manual when you use the HP APA
software with other products. See the documentation for the other products for additional information.
Getting started
Before you start troubleshooting, ensure that the communications hardware is ready for use. Verify
the following:
• The system's physical cable connections (the Ethernet connection and the transceiver connection)
are properly installed. See the documentation for your system and the NIC.
• Event logging is enabled in order to monitor network events. For information about the Network
Tracing and Logging (NetTL) tool, see “nettl tracing and logging tool” (page 69). For
information about logging messages to syslog, see “Logging messages to the syslog.log
file” (page 36).
Also see the product release notes for up-to-date information on known problems.
Solving HP APA problems
Turn on the power to your system. See the system manual for your
system's startup procedure and any problem solving information.
Edit the /etc/rc.log file and search for the string hpapa. This takes
you to the beginning of the HP APA start-up section. If there are failover
groups configured on your system, the following message indicates an
error:
ERROR: lanapplyconf failed
If there are no failover groups configured on your system, you can ignore
the error message.
50 Troubleshooting HP APA