EEM Scripting for error and drop counters

Question

Hi,
We want to check the following counters for drops every 5 minutes and generate an alarm if a certain threshold of errors (example: increment of 100 in the error/drop counters in the last 5 minutes) is overcome:
My sample script is inline, i'm missing how to parse and generate the alarm if the threshold is surpassed:
Example command:
SPLAB_7600_3#remote command module 4 show platform hardware drops | include Selene|drp                
------ Selene 0 Channel 0 ------
Selene Ingress Drop Counters Ch[0]
Selene Egress Drop Counters Ch[0]
    egr_tot_fifo_drp_ctr                          25
Selene Drop Counters
------ Selene 1 Channel 0 ------
Selene Ingress Drop Counters Ch[0]
Selene Egress Drop Counters Ch[0]
Selene Drop Counters
Best Regards,
Afonso
::cisco::eem::event_register_timer watchdog time $check_interval nice 1
# EEM policy to monitor a internal counters
# August 2012, Cisco Systems
# Copyright (c) 2012 by cisco Systems, Inc.
# All rights reserved.
namespace import ::cisco::eem::*
namespace import ::cisco::lib::*
# 2. Execute the counter show commands
if [catch {cli_open} result] {
    error $result $errorInfo
} else {
    array set cli1 $result
if [catch {cli_exec $cli1(fd) "enable"} result] {
    error $result $errorInfo
if [catch {cli_exec $cli1(fd) "cisco"} result] {
    error $result $errorInfo
# - - - - - -  Interface error counters
if [catch {cli_exec $cli1(fd) "remote command module x show platform hardware selene np-idx 0 counters | include drop"} result] {
        error $result $errorInfo
set egr_drp_ctr $result
#- Parsing and conditional programming for the generation of traps based on the drop value extracted from the show command
action_syslog priority info msg "Counter Alarm"
#Exit
if [catch {cli_exec $cli1(fd) "end"} result] {
    error $result $errorInfo

Answer 1

I believe this is what you are looking for:
set egr_drp_ctr $result
expr {$egr_drp_ctr + 100} sumof
if {$egr_drp_ctr >= $sumof}
    puts "Alarm"
It may need correction on the syntax , but thats the logic.