Syslog
The debug commands discussed in the preceding section might overwhelm the router if they are sent to the console or monitor. So, it is better to send the commands to the buffer and capture the debug output if syslog server is not available:
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Disable the console and monitor logging for debug messages
router(config)# no logging console debugging
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Enable buffered logging and increase the buffer size to 1000000
router(config)# logging buffered 1000000
router(config)# logging buffered debugging -
Enable the required CBAC-related debug as discussed earlier.
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When the problem occurs, collect the debug output in the buffer and examine the output with the following command:
router# show logging