HP Auto Port Aggregation Administrator's Guide for HP-UX 11i v3 December 2007

You can access the logging and tracing utility using either the graphical user interface (GUI)
version or the command line interface. The GUI version does the following:
• Guides you through logging and tracing tasks.
• Enables you to create and format reports.
• Collects logging and tracing information specific to a subsystem.
• Displays report screens that are updated instantaneously with current logging and tracing
information by the subsystem.
• Provides context-sensitive on-line help.
To access the GUI version of the logging and tracing utility, enter the following command:
nettladm
There are three levels of logging:
• At link aggregate level
• At Cisco's FEC level
• At IEEE 802.3ad LACP level
The following examples show how to perform different tasks from the command line:
• To turn on all logging at link aggregate level, enter:
nettl -log 0xf -e HP_APA
• To turn on all logging at Cisco's FEC level, enter:
nettl -log 0xf -e HP_APAPORT
• To turn on all logging at IEEE 802.3ad level, enter:
nettl -log 0xf -e HP_APALACP
• To examine the log file with cause and action descriptions, enter:
netfmt -v -f /var/adm/nettl.LOG00 | more
• To examine just the log messages in the log file, enter:
netfmt -f /var/adm/nettl.LOG00
• To check network logging and tracing status, enter:
nettl -status
• To start Cisco's FEC tracing to the file /tmp/tracefile.TRC0, enter:
nettl -traceon all -entity HP_APAPORT -file /tmp/tracefile
• To stop Cisco's FEC tracing, enter:
nettl -traceoff all -entity HP_APAPORT
• To start LACP tracing to the file /tmp/tracefile.TRC0, enter:
nettl -traceon all -entity HP_APALACP -file /tmp/tracefile
• To stop LACP tracing, enter:
nettl -traceoff all -entity HP_APALACP
• To format the tracefile into the file /tmp/traceout, enter:
nettl -f /tmp/tracefile.TRC0 > /tmp/traceout
Whenever the TSO status of a link aggregate or failover group changes, a warning message is
logged in the nettl.LOG000 file. For example, when the TSO capability is disabled on an
aggregate, a WARNING message similar to the following is logged:
----------------------Auto-Port Aggregation/9000 Networking--------------@#%
Timestamp : Wed Aug 18 PDT 2004 09:37:56.600031
Process ID : [ICS] Subsystem : HP_APA
88 Troubleshooting HP APA