Using Nagios to watch PRI usage

Here is a really quick (and even dirtier) way to quickly determine if you are overextending your PRI usage.

This is a really simple script for Nagios to run and report how many concurrent calls you have.

Fill in the blanks for NAMEOFHOST (CallManager hostname), COMMUNITYNAME (snmp read only community name for CallManager Express) and ifnums. ifnums are the integer values for IF-MIB::ifIndex.** where ** is the interface number for your PRI. you will have to do some snmpwalking to figure this out. I left some values in the script to show how to format your entries.

This script requires the check_ifoperstatus Nagios plugin to work. I will clean this up soon and re-post.

This script throws a critical warning if the PRI usage is 7 or more concurrent calls

#!/bin/sh # SNMP test for number of interfaces up in a particular range # export NAG_PLUG_PATH=/usr/lib/nagios/plugins export IF_STAT_PLUG=check_ifoperstatus export NAMEOFHOST=_____________ export COMMUNITY_NAME=____________ ifnums=( 23 24 25 26 27 28 29 30 31 32 ) CTR1=0 for interface in ${ifnums[@]} do VAR1=`$NAG_PLUG_PATH/$IF_STAT_PLUG -k $interface -H $NAMEOFHOST -C $COMMUNITY_NAME` if [ "${VAR1%*\:*\:*}" = "CRITICAL" ]; then VAR2=0 else CTR1=`expr $CTR1 + 1` fi done if [ "$CTR1" -ge "7" ]; then STATUSCODE=CRITICAL else STATUSCODE=OK fi echo "PRI $STATUSCODE - $CTR1 calls currently"