diff --git a/scripts/test-iperf-fallback b/scripts/test-iperf-fallback
new file mode 100755
index 0000000..07ff98e
--- /dev/null
+++ b/scripts/test-iperf-fallback
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+source scan-netdev
+VLAN=110
+CTLPLANE=110
+MY_DATE=`date +%Y-%m-%d_%H-%M-%S`
+mkdir -p $OUTPUT_DIR/iperf
+
+MY_PORT=`grep $SERVER_SERIAL /etc/netdev/vlan.$CTLPLANE.csv \
+	| cut -d ',' -f 3 | cut -d '.' -f 4`
+if [[ -z $MY_PORT ]] ; then
+	echo "My Port empty"
+	exit 27
+fi
+
+
+	if [[ -f /etc/netdev/vlan.$VLAN.csv ]] ; then
+		VLAN_CONF=`grep $SERVER_SERIAL \
+			/etc/netdev/vlan.$VLAN.csv` 
+	fi
+	if [[ -z $VLAN_CONF ]] ; then
+		continue
+	fi
+	IP_LIST=`sed 's/#.*$//'  /etc/netdev/vlan.$VLAN.csv \
+		| grep 'CDMXV-OSP' \
+		| cut -d ',' -f 3 \
+		| grep '^[0-9]' | sort`
+	for IP in $IP_LIST; do 
+		echo -n "$IP - "  
+		iperf3  -P 4 -p 52$MY_PORT \
+			--logfile $OUTPUT_DIR/iperf/client.$IP.concurrent.log \
+			-c $IP &
+		#echo $?
+	done
+#	sleep 55
+