Concept Guide

Version Description
9.2(0.0) Introduced on the S4810, S4820T, Z9000, and MXL Switch.
Usage Information
The maximum number of events you can congure is 20. The maximum number of allowed tag patterns in a log
event trigger is three. The tags of the log events must be an exact comparison. The three tags work in a logical OR
operation format (match with any one of the tags occurs).
NOTE: Before deleting a trigger event, you MUST unlink the script from the event.
If you use the caret symbol (^) as a pattern, the Dell EMC Networking OS generates blank space as the starting
character of the SYSLOG. The special character $ is not allowed to use in regular expressions, as the last word in
the SYSLOG is line feed.
NOTE: The time-events schedule time takes eect once after the device congures the trigger-event
(event). A single trigger event can contain combinations of interval, weekday, month, and month day.
Related Command script event-handler — Allows you to provide mapping between the scripts and trigger events.
Examples
Following example shows how the event triggers a script, even if any one of the pattern matches.
DellEMC(conf)# script trigger-event Server_Reporter_Event log-event tag tag-or-
ex "Major alarm" "Minor alarm"
Following example shows how the event triggers a script, if the system throws the SYSLOG message like: Oct 29
05:28:16: %RPM0-P:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Ma 0/0.
DellEMC(conf)# script trigger-event Port_State_Event log-event tag tag-regex
"OSTATE.*up"
Following example shows the script triggering at 22:22 and then triggers every Monday midnight and stops at
02:02–11/10/14.
DellEMC(conf)# script trigger-event Event2 time-event start at 22:22 stop at
02:02-11/10/14 weekday mon
Following example shows the cpu-usage limit.
DellEMC(conf)# script trigger-event event1 cpu-usage 30
Following example shows how the event triggers on every month rst Sunday.
DellEMC(conf)# script trigger-event Event2 time-event weekday sun month
jan,feb,mar,apr,may,jun,jul,aug,sep,oct,nov,dec mothday 1-7
Following example shows how the event triggers at the end of every quarter.
DellEMC(conf)# script trigger-event Event2 time-event mon jan,may,sep weekday
sun monthday 24-31
Following example shows how the event triggers a script, when all the (tag–and–ex) combinations matches with
the system SYSLOG message:
DellEMC(conf)# script trigger-event event7 log-event tag tag-and-ex ASTATE
Admin up
Following are the various combinations of examples to trigger a script, when the regular expression matches with
the system SYSLOG message:
DellEMC(conf)# script trigger-event event1 log-event tag tag-regex ASTATE.*up
DellEMC(conf)# script trigger-event event6 log-event tag tag-regex "^ [A-Za-z]
+.* Syslog [0-5]"
Smart Scripting CLI
107