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All ICM processes write some default level of tracing to log files that can be viewed with the
Trace and Log utility.
•
When specific trace levels are enabled, corresponding details are written to router log files
in the logfile directory.
•
Default individual log file size is 99k.
•
Default aggregate log file size is 600k
•
If router tracing is turned too high, individual log files will wrap very quickly, potentially
within a minute if call volume is high. In that case, not much data can be captured because
the time span is very small. To get around this, router log file capacities can be increased by
altering a few Microsoft Windows registry settings. Make sure there is enough disk space
available before increasing log file capacities.
To enter the Windows registry:
a.
From a command prompt, enter regedt32.
b.
After checking available disk space, the following two registry settings can be changed
to allow for larger router log files.
Note: The values are displayed in hexadecimal by default. Click on the Decimal radio button
to see the base 10 value.
\\.\software\geotel\icr\csco\routera\ems\currentversion\library\processes\rtr\EMSAllLogFilesMax
\\.\software\geotel\icr\csco\routera\ems\currentversion\library\processes\rtr\EMSLogFileMax
The first parameter - EMSAllLogFilesMax specifies the maximum amount of disk space
the router will allocate for all log files combined.
The second parameter - EMSLogFileMax specifies the maximum size that the router will
allocate to each log file. For example, if you set EMSAllLogFilesMax to 20 mg, and
EMSLogFileMax to 2 mg, the router will eventually create no more than 10 files, each being
no more than 2 mg in size.
Turning Off Debug Tracing in RTTest
When you are finished viewing router logs, it is good practice to disable all tracing that was
added for troubleshooting purposes. Do this using the /noall directive as shown below:
c:\icm\cd\ra\logfiles>rttest /cust cd /node routera
rttest: debug /noall
Cisco Support Tools User Guide for Cisco Unified Software Release 2.1(1)
189
Chapter 13: Using Cisco Common Tools
How to Use the RTTest Utility