Enable EEM based on interface description...

I want to enable EEM based on interface description...
ex int gigabitethernet 0/0
description man_link
The basic requirement is we need to monitor those links .... as we keep changing the link from one port to another so therefore we need to enable based on description.
Please let me know if its posible.

I don't understand the question. What do you want to monitor exactly? There is no event detector for interface description, so any kind of reaction would likely have to be through a timer.

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Tcl script help -- include interface description in status message

Hi there,
I'm trying to create a script that will email me when an interface goes down, and include the interface description in the email. I've found a script that successfully emails me when the status changes, and I found another script that will parse for the interface description, but I can't seem to get them to work together. I've mashed them up together into the below script:
# EEM policy that will monitor SYSLOG for Interface status changes.
# If UPDOWN message is detected, send an email with interface information.
### The following EEM environment variables are used:
### _email_server
### - A Simple Mail Transfer Protocol (SMTP)
### mail server used to send e-mail.
### Example: _email_server mailserver.example.com
# Register for a Syslog event. Event Detector: Syslog
# Match pattern for Interface Status change
::cisco::eem::event_register_syslog pattern "%LINK-3-UPDOWN"
# NAMESPACE IMPORT
namespace import ::cisco::eem::*
namespace import ::cisco::lib::*
# Set array for event_reqinfo
# Array is populated with additional event information
array set Syslog_info [event_reqinfo]
set msg $Syslog_info(msg)
# Set routername variable for use later
set routername [info hostname]
# Parse output for interface name
if { ! [regexp {: ([^:]+)$} $msg -> info] } {
    action_syslog msg "Failed to parse syslog message"
regexp {Line protocol on Interface ([a-zA-Z0-9]+)} $info -> interface
# ------------------- cli open -------------------
if [catch {cli_open} result] {
error $result $errorInfo
} else {
array set cli $result
# Go into Enable mode
if [catch {cli_exec $cli(fd) "enable"} result] {
error $result $errorInfo
#Find interface description
if [catch {cli_exec $cli(fd) "show interface $interface | inc Description" } description] {
        error $description $errorInfo
#--------------------- cli close ------------------------
cli_close $cli(fd) $cli(tty_id)
set time_now [clock seconds]
set time_now [clock format $time_now -format "%T %Z %a %b %d %Y"]
# EMAIL MESSAGE
# This manually creates a text message with specific format to be used by the
# smtp_send_email command later to send an email alert.
# Ensure the following are configured:
# ip domain-name <domain.com>
# If a hostname is used for mailservername, ensure the following are configured:
# ip name-server <dns-server>
# ip domain-lookup
# NOTE: Change environment variable _email_server to your SMTP server
# The email below references the following variables:
# $routername: hostname of device
# $time_now: time when specific Syslog message was detected
# $msg: Syslog message received
set email_message "Mailservername: $_email_server
From: [email protected]
To: $_email_to
Cc:
Subject: EEM: Critical interface status change on $routername
This email is generated by EEM.
$time_now
$msg
$description
# Send email message
if {[catch {smtp_send_email $email_message} result]} {
set result "Email send failed"
} else {
set result "Email Sent"
# Debug message to check email transmission status
action_syslog msg "$result"
When I trigger an interface UPDOWN message, I'm getting the following error on the command line:
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: can't read "interface": no such variable
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     while executing
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: "cli_exec $cli(fd) "show interface $interface | inc Description" "
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     invoked from within
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: "$slave eval $Contents"
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     (procedure "eval_script" line 7)
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     invoked from within
Oct 17 23:56:19.355 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: "eval_script slave $scriptname"
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     invoked from within
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: "if {$security_level == 1} {       #untrusted script
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:      interp create -safe slave
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:      interp share {} stdin slave
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:      interp share {} stdout slave
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: ..."
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     (file "tmpsys:/lib/tcl/base.tcl" line 50)
Oct 17 23:56:19.359 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: Tcl policy execute failed: can't read "interface": no such variable
Can anyone help me figure out where I'm going wrong?
Thanks in advance,
Brandon

Hi Dan,
Thanks for the reply.   I've made the changes you suggested but I'm still getting the error:
Oct 18 21:41:50.446 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: can't read "interface": no such variable
Oct 18 21:41:50.446 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl:     while executing
Oct 18 21:41:50.446 HKT: %HA_EM-6-LOG: CriticalLinkStatus.tcl: "cli_exec $cli(fd) "show int $interface | inc Description""
Is there any additional debugging I could place in my script? Normally I would try and print the variables after each line to see what's being populated, but I'm not sure how I can test that from within EEM.
--Brandon

Alert Parameters to Get Interface Description (i.e. Something Meaningful to Network Admins)

Hi All,
We have recently deployed OpsMgr 2012 R2 inparallel to our legacy 2007 environment.
For network device monitoring in the 2007 environment we used the xSNMP Management Pack on top-of the native capabilities.
On of the positive aspects of the 2007 set-up was that we were able to leverage the xSNMP Management Packs ability to expose the interface alias/description which our Network admins populate to identify the connection/purpose of an interface within the SMS
Channel format.
Basically, the Network Admins would give me a list of critical interfaces and using the combination of Path and Alias/Description I would be able to confidently enable interface monitoring and alerting for those interfaces.
In 2012, however, all that has been changed. Now, interfaces are identified by an Interface Name value that is not really meaningful or relevant to the way our Network Admins work. Wjat I also find problematic is the way that interfaces seem
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What we require is a way to expose the host device and Interface Description and Alias values as part of an SMS/email alert as that is crucial information that an on-call engineer being woken-up at 2:00 AM needs to know rather than scratching
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using the list of alert parameters from Kevin Holman's blog but even with the $Data/Context/DataItem/ManagedEntityFullName parameter the information is not satisfactory.
For all the improvement in SNMP and network monitoring it seems that something that was actually good and useful in 2007 has now been lost because of the way interfaces/ports have been divorced from the parent Managed Network Node device.
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Yeah, that's kind of a mess...
You can create a workaround to change the name similar like that:
http://www.vroege.biz/?p=746
But it needs some authoring knowledge and must run every time after a network discovery. Since this means a class property change it is a performance consuming workflow and should not run top often.
HTH, Patrick
Please remember to click “Mark as Answer” on the post that helped you.
Patrick Seidl (System Center and Private Cloud)
Website: http://www.syliance.com
Blog: http://www.systemcenterrocks.com

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Thankyou in advance

Hi,
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As i know is possible to avoid to configure every single not-interesting port on the switches with "no snmp trap link-status" command (it's a bit annoying when you have tens of switches), using Port Grouping configuration on PI but i tried it without success.
Hope this helps.
Best Regards,

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I don't understand the question. What do you want to monitor exactly? There is no event detector for interface description, so any kind of reaction would likely have to be through a timer.

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unfortunately it is not possible :(
I don't see any option to do that...
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Enable EEM based on interface description...

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