check all bgp session on router (tested with Cisco and Juniper)

check_bgp

#!/bin/bash
OK=0
CRITICAL=2
STATE=0
PLUGIN_PATH="/usr/local/nagios/libexec/plugins"
outputfile=/var/log/bgp.log
OID_sysDescr=SNMPv2-MIB::sysDescr.0
OID_hostname=SNMPv2-MIB::sysName.0
COMMUNITY=*****************
DBname=************
DBtable=***********
VERSION="1.1"
print_version() {
  echo "$SCRIPTNAME" version "$VERSION"
  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 "add HKIX feature: it will not be critical if there a only some HKIX connections die"
}

print_help() {
  print_version
  echo ""
  print_usage
  echo ""
  echo "**** Check BGP connection on a router  ****"
  echo ""
  echo -e "-H ADDRESS  - Hostname to query (default: 127.0.0.1)\n -l logical-system for Junos router \n -V Print version"
  echo  "-h Print this help"
  echo "Befor using this plugin, you can create a mysql database that have a 4 field table:  id | group_BGP | name_BGP | peer_BGP"
}
# Arguments
while getopts H:l:v:hV OPT
do
  case "$OPT" in
    H) HOSTNAME="$OPTARG" ;;
    l) LS="$OPTARG";;
    h) print_help
       exit $STATE ;;
    V) print_version
       exit $STATE ;;
   esac
done
############################
######---Main----###########
############################
sysinfo=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME $OID_sysDescr | awk 'NR==1 {print $4}'`
hostname=`snmpwalk -v 2c -c $COMMUNITY $HOSTNAME $OID_hostname | awk 'NR==1 {print $4}'`
#################  INFO   ############
###########################################
#echo "############ $LS ########"
#echo $sysinfo
if [ "$LS" == "physical" ]; then
# Get BGP status
#/usr/bin/expect /usr/local/nagios/libexec/plugins/get_bgp_$sysinfo $HOSTNAME | grep "Active" | awk '{print  "\47" $1 "\47, "}' | sed 's/,*$//'
 pf2=`echo $(/usr/bin/expect /usr/local/nagios/libexec/plugins/get_bgp_$sysinfo $HOSTNAME | grep "Active\|Connect" |grep -v AS | awk '{print  "\47" $1 "\47, "}') | sed 's/,*$//'`

else
	pf2=`echo $(/usr/bin/expect /usr/local/nagios/libexec/plugins/get_bgp_ls_$sysinfo $HOSTNAME $LS | grep "Active\|Connect" | grep -v AS | awk '{print  "\47" $1 "\47, "}' )  | sed 's/,*$//'`

fi
	export NF=`echo $pf2 | wc -w`
if [ "$pf2" != "" ]; then
	#determine this is HKIX group or not#
	group=`mysql -u hafthanhf -e "select group_BGP from $DBname.$DBtable where peer_BGP in ($pf2);" | awk '{if(NR>1)print}' |column -t `
	nd=`echo "$group" | wc -l`
	for i in $group then
	do
		if [ "$i" == "HKIX" ]; then
		hkix=1
		else 
			hkix=0
			break
		fi
	done
	if [ "$hkix" = 0 ] && [ "$nd" -lt "10" ]; then
		STATE=1
#		echo "warning"
	else
		STATE=2	
#		echo "critical"
	fi
	#####################################
	echo "There are $NF BGP connections failed on $hostname:$LS router"
	mysql -u hafthanhf -e "select group_BGP,peer_BGP,name_BGP,Email from $DBname.$DBtable where peer_BGP in ($pf2);" | column -t

	exit $STATE;
else
	echo -e "Everything is fine----"
#	echo $fullinfo
	STATE=0
	exit 0;
fi
	cat /tmp/bgp_$HOSTNAME_$LS.log
	exit $STATE