diff --git a/roles/compute-node/files/rename_ifaces.sh.back b/roles/compute-node/files/rename_ifaces.sh.back
new file mode 100755
index 0000000..76056ff
--- /dev/null
+++ b/roles/compute-node/files/rename_ifaces.sh.back
@@ -0,0 +1,110 @@
+#!/bin/bash
+
+BASE="10.4"
+LEAF="1"
+SERVER="1"
+
+function guess_type {
+    local CNT=$(echo "$1" | sed -e 's/[:.]/ /g' | wc -w)
+    if [ $CNT -ne 1 ]; then
+        # drop all sub and vlan interfaces
+        echo "DNC"
+        return
+    fi
+    local DRIVER=$(ethtool -i $1 2>/dev/null | grep driver | awk '{print $2}')
+    local RESULT="DNC"
+    case $DRIVER in
+        i40e)
+            RESULT="I40G"
+            ;;
+        igb)
+            RESULT="ETH"
+            ;;
+        *) ;;
+    esac
+    echo $RESULT
+}
+
+function get_mac {
+  echo $(ifconfig $1 | grep HWaddr | awk '{print $5}')
+}
+
+function generate_persistent_names {
+    local OUT="70-persistent-net.rules"
+    rm -rf $OUT
+
+    IDX=0
+    for i in $(cat $1 | sort); do
+        echo "SUBSYSTEM==\"net\", ACTION==\"add\", DRIVERS==\"?*\", ATTR{address}==\"$i\", ATTR{dev_id}==\"0x0\", ATTR{type}==\"1\", KERNEL==\"eth*\", NAME=\"eth$IDX\"" >> $OUT
+        IDX=$(expr $IDX + 1)
+    done
+
+    for i in $(cat $2 | sort); do
+        echo "SUBSYSTEM==\"net\", ACTION==\"add\", DRIVERS==\"?*\", ATTR{address}==\"$i\", NAME=\"eth$IDX\"" >> $OUT
+        IDX=$(expr $IDX + 1)
+    done
+}
+
+function generate_interfaces {
+    OUT="interfaces"
+    rm -rf $OUT
+    echo "# This file describes the network interfaces available on your system" >> $OUT
+    echo "# and how to activate them. For more information, see interfaces(5)." >> $OUT
+    echo "" >> $OUT
+    echo "# The loopback network interface" >> $OUT
+    echo "auto lo" >> $OUT
+    echo "iface lo inet loopback" >> $OUT
+    echo "" >> $OUT
+
+    IDX=0
+    FIRST=1
+    for i in $(cat $1); do
+        if [ $FIRST -eq 1 ]; then
+            echo "auto eth$IDX" >> $OUT
+            echo "iface eth$IDX inet static" >> $OUT
+            echo "    address $BASE.$LEAF.$SERVER" >> $OUT
+            echo "    network $BASE.$LEAF.0" >> $OUT
+            echo "    netmask 255.255.255.0" >> $OUT
+            FIRST=0
+        else
+            echo "iface eth$IDX inet manual" >> $OUT
+        fi
+        echo "" >> $OUT
+        IDX=$(expr $IDX + 1)
+    done
+
+    FIRST=1
+    for i in $(cat $2); do
+        if [ $FIRST -eq 1 ]; then
+            echo "auto eth$IDX" >> $OUT
+            echo "iface eth$IDX inet dhcp" >> $OUT
+            FIRST=0
+        else
+            echo "iface eth$IDX inet manual" >> $OUT
+        fi
+        echo "" >> $OUT
+        IDX=$(expr $IDX + 1)
+    done
+}
+
+LIST_ETH=$(mktemp -u)
+LIST_40G=$(mktemp -u)
+IFACES=$(ifconfig -a | grep "^[a-z]" | awk '{print $1}')
+
+for i in $IFACES; do
+    TYPE=$(guess_type $i)
+    case $TYPE in
+        ETH)
+            echo "$(get_mac $i)" >> $LIST_ETH
+            ;;
+        I40G)
+            echo "$(get_mac $i)" >> $LIST_40G
+            ;;
+        *) ;;
+    esac
+done
+
+generate_persistent_names $LIST_40G $LIST_ETH
+generate_interfaces $LIST_40G $LIST_ETH
+rm -rf $LIST_ETH
+rm -rf $LIST_40G