check_bandwidth

check_bandwidth

#!/bin/bash
#Ussage: Check input bandwidth on each switch port
########## ./check_bw $IP_of_switch $port_No_with_slash $max_threshold $min_threshold#####
########## Version 2.0  ########################################
################################################################
########### Created by Thanh.ha ##############################
########                            ###########################
###############################################################
###############################################################
print_usage() {
  echo "Usage: ./check_bw -H Address  -p port_number - I value_in_Kbps -i value_in_Kbps -O value_in_Kbps -o value_in_Kbps"
  echo "  ./$SCRIPTNAME -H ADDRESS"
  echo "  ./$SCRIPTNAME -p STRING"
  echo "  ./$SCRIPTNAME -I STRING"
  echo "  ./$SCRIPTNAME -i INTEGER"
  echo "  ./$SCRIPTNAME -O INTEGER"
  echo "  ./$SCRIPTNAME -o INTEGER"
  echo "  ./$SCRIPTNAME -h"
  echo "  ./$SCRIPTNAME -V"
  echo "Example: ./check_bw -H 10.255.0.251 -p g0/2  -I 100000 -i  100 -O 100000 -o 100"
}

print_version() {
  echo "$SCRIPTNAME" version "$VERSION"
  echo "********* NOTE *********************************"
  echo "This plugin is ONLY used with cisco 2960 devices"
  echo "This nagios plugins comes with ABSOLUTELY NO WARRANTY."
  echo "You may redistribute copies of the plugins under the terms of the GNU General Public License v2."
  echo "Written by hafthanhf"
}

print_help() {
  print_version
  echo ""
  print_usage
}

# Plugin return statements
NORMAL=0
WARNING=1
CRITICAL=2
UNKNOWN=3

#OID_CPUIDLE=".1.3.6.1.4.1.2021.11.11.0"
#OID_TOTALMEMORY=".1.3.6.1.4.1.2021.4.5.0"
#OID_FREEMEMORY=".1.3.6.1.4.1.2021.4.11.0"
OID_sysDescr=SNMPv2-MIB::sysDescr.0 
OID_inrate_junos="1.3.6.1.4.1.2636.3.3.1.1.1"
OID_outrate_junos="1.3.6.1.4.1.2636.3.3.1.1.4"
# Default variables

VERSION=2.0
DESCRIPTION="Unknown"
STATE="$STATE_UNKNOWN"
STATE_MESSAGE="UNKNOWN"

# Default options
COMMUNITY="********"
HOSTNAME="127.0.0.1"
#VERSION="2c"
#WARNING=0
#CRITICAL=0
PATH1=/usr/local/nagios/libexec/
while getopts H:p:I:i:O:o:hV OPT
do
  case "$OPT" in
    H) HOSTNAME="$OPTARG" ;;
    p) PORTNo="$OPTARG" ;;
    I) MAXinTH="$OPTARG" ;;
    i) MINinTH="$OPTARG" ;;
    O) MAXoutTH="$OPTARG" ;;
    o) MINoutTH="$OPTARG" ;;
    h) print_help
       exit "$UNKNOWN" ;;
    V) print_version
       exit "$UNKNOWN" ;;
   esac
done

#Start to processing
################# CISCO INFO   ############
###########################################
getvalue_cisco () {
#Get input rate
bw_in=`/usr/bin/expect $PATH1/get_bw_value $HOSTNAME $PORTNo | grep "input rate" | awk '{print $5}'`
#Get Ouput rate
bw_out=`/usr/bin/expect $PATH1/get_bw_value $HOSTNAME $PORTNo | grep "output rate" | awk '{print $5}'`

bw_in=`expr $bw_in / 1000 `
bw_out=`expr $bw_out / 1000 `
}
################# QUIDWAY INFO   ############
###########################################
getvalue_quidway () {
#Get input rate
bw_in=`/usr/bin/expect $PATH1/get_huawei_info $HOSTNAME $PORTNo | grep "input rate" | awk '{print $6}'`
#Get Ouput rate
bw_out=`/usr/bin/expect $PATH1/get_huawei_info $HOSTNAME $PORTNo | grep "output rate" | awk '{print $6}'`

bw_in=`expr $bw_in / 1000 `
bw_out=`expr $bw_out / 1000 `
#echo $bw_in
#echo $bw_out
}

################# JUNOS INFO   ############
###########################################
getvalue_junos () {
bw_in=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME $OID_inrate_junos.$ifoid | awk '{print $4}'`
bw_out=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME $OID_outrate_junos.$ifoid | awk  '{print $4}'`
bw_in=`expr $bw_in / 1000 `
bw_out=`expr $bw_out / 1000 `
}

#Get system infomation
sysinfo=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME $OID_sysDescr | awk 'NR==1 {print $4}'`
#Get Interface's OID
ifoid=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME IF-MIB::ifDescr | grep $PORTNo$ | awk -F '[{. }]'  '{print $2}'`
#Get Interface's description
channel=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME IF-MIB::ifAlias | grep $ifoid | awk '{print $4 $5 $6}'`
#################  INFO   ############
###########################################
case "$sysinfo" in
	Cisco) getvalue_cisco ;;
	Juniper) getvalue_junos ;;
	Quidway) getvalue_quidway ;;
esac

###Processing
if [ $bw_in -ge 0 ] && [ $bw_out -ge 0 ] ; then
        if [ $bw_in -le $MAXinTH ] && [ $bw_in -ge $MINinTH ]; then
                if [ $bw_out -lt $MAXoutTH ] && [ $bw_out -gt $MINoutTH ] ; then
                        echo -e "The $channel channel is normal\nTraffic on the port $PORTNo at the moment:\nInput: $bw_in Kbps\nOutput: $bw_out Kbps"
                        exit 0
                        elif [ $bw_out -ge $MAXoutTH ] ; then
				echo -e "Somethings worng! Output bandwidth of the  $channel channel is so high, please check this direction!\nTraffic on the port $PORTNo at the moment: \n Output bandwidth: $bw_out Kbps\n Input bandwidth: $bw_in Kbps"
                                exit $CRITICAL
                        else
				echo -e "Somethings worng! Output bandwidth of the  $channel channel is so low, please check this direction!\nTraffic on the port $PORTNo at the moment: \n Output bandwidth: $bw_out Kbps\n Input bandwidth: $bw_in Kbps"
	                        exit $CRITICAL
                fi
        elif [  $bw_in -gt $MAXinTH ] ; then
				echo -e "Somethings worng! Input bandwidth of the  $channel channel is so high, please check this direction!\nTraffic on the port $PORTNo at the moment: \n Output bandwidth: $bw_out Kbps\n Input bandwidth: $bw_in Kbps"
                exit $CRITICAL
        else
				echo -e "Somethings worng! Input bandwidth of the  $channel channel is so low, please check this direction!\nTraffic on the port $PORTNo at the moment: \n Output bandwidth: $bw_out Kbps\n Input bandwidth: $bw_in Kbps"
                exit $CRITICAL
        fi
else
        echo "Cannot receive information, pls wait for rechecking ....."
        exit $UNKNOWN
fi