Log 99 is a pre-configured memory-based log which logs events from the main event source (not security, debug, and so on). Log 99 exists by default.
The following example displays the log 99 configuration.
ALA-1>config>log# info detail
#------------------------------------------
echo "Log Configuration "
#------------------------------------------
...
snmp-trap-group 7
exit
...
log-id 99
description "Default system log"
no filter
from main
to memory 500
no shutdown
exit
----------------------------------------------
ALA-1>config>log#