Default System Log - Alcatel-Lucent 7450 System Management Manual

Default System Log

Default System Log
Log 99 is a pre-configured memory-based log which logs events from the main event source (not
security, debug, etc.). Log 99 exists by default.
The following example displays the log 99 configuration.
ALA-1>config>log# info detail
#------------------------------------------
echo "Log Configuration "
#------------------------------------------
...
...
----------------------------------------------
ALA-1>config>log#
Event Handling System
The Event Handling System (EHS) is a tool that allows operator-defined behavior to be configured
on the router. EHS adds user-controlled programmatic exception handling by allowing a CLI
script to be executed upon the detection of a log event (the 'trigger'). Regexp style expression
matching is available on various fields in the log event to give flexibility in the trigger definition.
EHS handler objects are used to tie together:
•
•
EHS, along with CRON, makes use of the generic SR OS CLI script-control functions for scripts.
Any command available in CLI (with some limited exceptions such as 'candidate' commands) can
be executed in a script as the result of an EHS handler being triggered.
The following figure illustrates the relationships between the different configurable objects used
by EHS (and CRON).
Page 394
snmp-trap-group 7
exit
log-id 99
description "Default system log"
no filter
from main
to memory 500
no shutdown
exit
trigger events (typically log events that match some configurable criteria)
a set of actions to perform (typically one or more CLI scripts)
7450 ESS System Mangement Guide