EEM script to find a pattern and send an alert of some sort

news2010a · ‎06-18-2014

Hello folks, can someone suggest why the script below is not returning anything?
My goal is to execute 'show hsrp detail', if HSRP output contains pattern indicated below, I should be able to generate an alert somehow.

Please let me know what I am missing.

event manager applet HSRP

event syslog pattern "Standby router is unknown"

action 1.0 cli show hsrp detail

action 2.0 syslog msg HSRP ISSUE

action 3.0 cli end

This is the output I want to find pattern from:

SWITCHTEST# show hsrp detail
Ethernet2/1 - Group 101 (HSRP-V2) (IPv4)
Local state is Initial(Interface Down), priority 90 (Cfged 90), may preempt
Forwarding threshold(for vPC), lower: 1 upper: 90
Hellotime 3 sec, holdtime 10 sec
Virtual IP address is 10.17.173.1 (Cfged)
Active router is unknown
Standby router is unknown
Authentication text "cisco"
Virtual mac address is 0000.0c9f.f065 (Default MAC)
6 state changes, last state change 04:18:02
IP redundancy name is hsrp-Eth2/1-101 (default)

Joe Clarke · ‎06-21-2014

What you want to do is not possible on NX-OS yet. While you can get the syslog message "HSRP ISSUE" the output of the command will not display. You could store it on flash by redirecting the output to a local file, but it will not appear in the syslog message.