ATM Configuration and Troubleshooting Guide

Logging and Tracing ATM Activity
Tracing
Chapter 10292
Tracing
The following sections describe how to do the following:
• Start tracing the packet information you want to trace.
• Verify the status of tracing.
• Stop tracing.
NetTL must be running and must have been configured correctly for
ATM before the tracing can start (refer to the nettl(1)man page for
more information about NetTL).
NOTE Trace data can rapidly occupy large amounts of disk space.
Starting Tracing
If the NetTL daemon has not been started during system start up, turn
on tracing by using the nettl command with traceon option, and
specifying a trace output file, as follows:
nettl -traceon pduin pduout -entity atm -file /usr/adm/filename
where
-traceon Starts tracing on the subsystem specified by -entity.
pduin Traces incoming packets.
pduout Traces outgoing packets.
-entity Specifies the subsystem to be traced (in this case,
ATM).
-file Specifies the name for the trace output (there is no
default file).
In this example, tracing is turned on for incoming and outgoing packets
for the ATM subsystem, and the trace data is sent to the file
filename.TRC0. Note that NetTL automatically adds the suffix .TRC x to
the file name and might generate several trace files, depending on the
amount of data collected. For example, filename.TRC0, filename.TRC1,
filename.TRC2, etc.