diff --git a/cmake_targets/autotests/test_case_list.xml b/cmake_targets/autotests/test_case_list.xml
index d78e358e28..e2f34c7c90 100644
--- a/cmake_targets/autotests/test_case_list.xml
+++ b/cmake_targets/autotests/test_case_list.xml
@@ -1194,7 +1194,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf3_script 1 ppp0 -c 192.172.0.1 -i 1 -u -f m -B 192.172.0.2 -b 16M -R</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1 -f m -u</UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -1214,7 +1214,7 @@
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf3_script 5 lo -s -i 1 -f m   </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -b 16M -i 1 -f m -u</EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -1266,7 +1266,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 5 lo -s -i 1 -f m -u </UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1 -f m -u </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_search_expr_true>throughput_test min=0.0Mbits/sec max=9.0Mbits/sec average=8.5Mbits/sec   </UE_search_expr_true>
     <UE_search_expr_false></UE_search_expr_false>
@@ -1287,7 +1287,7 @@
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 75 lo -c 192.172.0.2 -b 33Mbits/s -i 1 -f m -u  </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -b 33M -i 1 -f m -u  </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -1361,7 +1361,7 @@
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 60 lo -u -c  192.172.0.2 -b 10Mbits/s   </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -u -c  192.172.0.2 -b 10Mbits/s   </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -1859,7 +1859,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1    -B 192.172.0.2</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1  </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_search_expr_true></UE_search_expr_true>
     <UE_search_expr_false></UE_search_expr_false>
@@ -1934,7 +1934,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1     -B 192.172.0.2</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1  </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_search_expr_true></UE_search_expr_true>
     <UE_search_expr_false></UE_search_expr_false>
@@ -2008,7 +2008,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1    -B 192.172.0.2</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1  </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_search_expr_true></UE_search_expr_true>
     <UE_search_expr_false></UE_search_expr_false>
@@ -2082,7 +2082,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf3_script 1 ppp0 -c 192.172.0.1 -i 1 -f m -B 192.172.0.2  -R</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1  -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -2102,7 +2102,7 @@
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf3_script 5 lo -s -i 1 -f m   </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -i 1  -f m  </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -2154,7 +2154,7 @@
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf3_script 5 ppp0  -c 192.172.0.1 -f m -R  </UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1  -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_search_expr_true>throughput_test min=0.0Mbits/sec max=9.0Mbits/sec average=8.5Mbits/sec   </UE_search_expr_true>
     <UE_search_expr_false></UE_search_expr_false>
@@ -2175,7 +2175,7 @@
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf3_script 5 lo -s  -i 1 -f m   </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -i 1  -f m  </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -2249,7 +2249,7 @@
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 60 lo  -c  192.172.0.2   </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2   -c  192.172.0.2   </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -3585,7 +3585,7 @@ c
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf3_script 1 ppp0 -c 192.172.0.1 -i 1 -u -f m -B 192.172.0.2 -b 16M -R</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s  -i 1 -u -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -3605,7 +3605,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf3_script 5 lo -s -i 1 -f m     </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -i 1 -u -f m -b 16M </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -3656,7 +3656,7 @@ c
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 5 lo -s -i 1 -u -f m </UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1 -u -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -3676,7 +3676,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 75 lo -c 192.172.0.2 -b 33Mbits/s -i 1 -f m -u     </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -b 33Mbits/s -i 1 -f m -u     </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -3727,7 +3727,7 @@ c
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1 -u -f m -B 192.172.0.2</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1 -u -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -3747,7 +3747,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 60 lo -u -c  192.172.0.2 -b 10Mbits/s     </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -u -c  192.172.0.2 -b 10Mbits/s     </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -3797,7 +3797,7 @@ c
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1   -B 192.172.0.2</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0  -c  192.172.0.1  -B 192.172.0.2</UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_search_expr_true></UE_search_expr_true>
     <UE_search_expr_false></UE_search_expr_false>
@@ -4013,7 +4013,7 @@ c
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf3_script 1 ppp0 -c 192.172.0.1 -i 1  -f m -B 192.172.0.2  -R</UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1  -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -4033,7 +4033,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf3_script 5 lo -s -i 1 -f m     </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -i 1  -f m </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -4084,7 +4084,7 @@ c
     <UE_pre_exec_args></UE_pre_exec_args>
     <UE_main_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --stop-ue ; sleep 10; $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --start-ue </UE_main_exec>
     <UE_main_exec_args></UE_main_exec_args>
-    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf3_script 5 ppp0  -c 192.172.0.1 -f m -R  </UE_traffic_exec>
+    <UE_traffic_exec>$OPENAIR_DIR/cmake_targets/autotests/tools/iperf_script 1 ppp0 -s -i 1  -f m </UE_traffic_exec>
     <UE_traffic_exec_args></UE_traffic_exec_args>
     <UE_terminate_missing_procs>False</UE_terminate_missing_procs>
     <UE_stop_script>sudo -S -E $OPENAIR_DIR/cmake_targets/autotests/tools/configure_cots_bandrich_ue.py --reset-ue </UE_stop_script>
@@ -4104,7 +4104,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf3_script 5 lo -s  -i 1 -f m  </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -i 1  -f m  </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -7293,7 +7293,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 65 lo -c 192.172.0.2 -b 16Mbits/s -i 1 -f m -u</EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -b 16Mbits/s -i 1 -f m -u</EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -7367,7 +7367,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 65 lo -c 192.172.0.2 -b 33Mbits/s -i 1 -f m -u </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -b 33Mbits/s -i 1 -f m -u </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -7441,7 +7441,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 65 lo -c 192.172.0.2 -b 40Mbits/s -i 1 -f m -u     </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2 -b 40Mbits/s -i 1 -f m -u     </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -7738,7 +7738,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 65 lo -c 192.172.0.2  -i 1 -f m </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2  -i 1 -f m </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -7812,7 +7812,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 65 lo -c 192.172.0.2  -i 1 -f m  </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10 192.172.0.2 -c 192.172.0.2  -i 1 -f m  </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>
@@ -7886,7 +7886,7 @@ c
     <EPC_main_exec_args></EPC_main_exec_args>
     <HSS_main_exec>/opt/hss_sim0609/starthss >> /dev/null ; sleep 3000 </HSS_main_exec>
     <HSS_main_exec_args></HSS_main_exec_args>
-    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 65 lo -c 192.172.0.2  -i 1 -f m      </EPC_traffic_exec>
+    <EPC_traffic_exec>$OPENAIRCN_DIR/TEST/autotests/tools/iperf_script 10  192.172.0.2 -c 192.172.0.2  -i 1 -f m      </EPC_traffic_exec>
     <EPC_traffic_exec_args></EPC_traffic_exec_args>
     <EPC_search_expr_false></EPC_search_expr_false>
     <EPC_terminate_missing_procs>False</EPC_terminate_missing_procs>