diff --git a/scripts/iperf_benchmark.sh b/scripts/iperf_benchmark.sh
index caa202831..da882d68c 100755
--- a/scripts/iperf_benchmark.sh
+++ b/scripts/iperf_benchmark.sh
@@ -37,6 +37,7 @@ netdev=
 ifaddr=
 netns=
 base_port=9000
+mtu=
 base_logdir=./logs/
 
 while getopts i:n:P:c:p:r:-: option; do
@@ -55,6 +56,12 @@ while getopts i:n:P:c:p:r:-: option; do
                 netns=*)
                     netns=${OPTARG#*=}
                     ;;
+                mtu)
+                    mtu="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
+                    ;;
+                mtu=*)
+                    mtu=${OPTARG#*=}
+                    ;;
                 logdir)
                     base_logdir="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
                     ;;
@@ -124,6 +131,11 @@ if [ ! -z "$ifaddr" ]; then
     $netns_cmd ip addr add $ifaddr dev $netdev
 fi
 
+if [ ! -z "$mtu" ]; then
+    echo "Changing MTU to $mtu on '$netdev'"
+    $netns_cmd ip link set mtu $mtu dev $netdev
+fi
+
 function cleanup()
 {
     echo "Cleaning up..."
diff --git a/scripts/piperf.sh b/scripts/piperf.sh
index a1abe19d0..0067f1e8e 100755
--- a/scripts/piperf.sh
+++ b/scripts/piperf.sh
@@ -35,6 +35,7 @@ ifaddr=
 netns=
 base_port=9000
 ptp4l=
+mtu=
 
 while getopts i:n:p:-: option; do
     case "${option}" in
@@ -52,6 +53,12 @@ while getopts i:n:p:-: option; do
                 netns=*)
                     netns=${OPTARG#*=}
                     ;;
+                mtu)
+                    mtu="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
+                    ;;
+                mtu=*)
+                    mtu=${OPTARG#*=}
+                    ;;
                 ptp4l)
                     ptp4l=1
                     ;;
@@ -108,6 +115,11 @@ if [ ! -z "$ifaddr" ]; then
     $netns_cmd ip addr add $ifaddr dev $netdev
 fi
 
+if [ ! -z "$mtu" ]; then
+    echo "Changing MTU to $mtu on '$netdev'"
+    $netns_cmd ip link set mtu $mtu dev $netdev
+fi
+
 function cleanup()
 {
     echo "Cleaning up..."
diff --git a/scripts/test_mqnic.sh b/scripts/test_mqnic.sh
index c7541da8b..689c520df 100755
--- a/scripts/test_mqnic.sh
+++ b/scripts/test_mqnic.sh
@@ -39,6 +39,7 @@ iperf_repeats=1
 iperf_p=4
 dest_ip=
 iperf_base_port=9000
+mtu=
 
 utils_path=../utils/
 mqnic_fw=$utils_path/mqnic-fw
@@ -60,6 +61,12 @@ while getopts i:n:P:c:p:r:-: option; do
                 netns=*)
                     netns=${OPTARG#*=}
                     ;;
+                mtu)
+                    mtu="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
+                    ;;
+                mtu=*)
+                    mtu=${OPTARG#*=}
+                    ;;
                 logdir)
                     base_logdir="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
                     ;;
@@ -113,6 +120,11 @@ if [ ! -z "$ifaddr" ]; then
     $netns_cmd ip addr add $ifaddr dev $netdev
 fi
 
+if [ ! -z "$mtu" ]; then
+    echo "Changing MTU to $mtu on '$netdev'"
+    $netns_cmd ip link set mtu $mtu dev $netdev
+fi
+
 function cleanup()
 {
     echo "Cleaning up..."