diff --git a/scripts/test-iperf-fallback b/scripts/test-iperf-fallback
index 07ff98e..9657198 100755
--- a/scripts/test-iperf-fallback
+++ b/scripts/test-iperf-fallback
@@ -27,8 +27,8 @@ fi
 		| 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 \
+		iperf3  -P 4 -t 900 -p 52$MY_PORT \
+			--logfile $OUTPUT_DIR/iperf/client.$IP.fallback.log \
 			-c $IP &
 		#echo $?
 	done