diff -u vlan-1.9/debian/changelog vlan-1.9/debian/changelog
--- vlan-1.9/debian/changelog
+++ vlan-1.9/debian/changelog
@@ -1,3 +1,11 @@
+vlan (1.9-3ubuntu10.1) trusty; urgency=medium
+
+  * If VLAN is configured with higher MTU than raw device MTU, which can
+    happen if VLAN is ifup'ed before raw device, then increase raw device
+    MTU first so the VLAN ifup does not fail. (LP: #1224007)
+
+ -- Dan Streetman <dan.streetman@canonical.com>  Thu, 08 Sep 2016 12:47:31 -0400
+
 vlan (1.9-3ubuntu10) trusty; urgency=medium
 
   * Only create VLANs for the interface we are processing. (LP: #1295371)
diff -u vlan-1.9/debian/network/if-pre-up.d/vlan vlan-1.9/debian/network/if-pre-up.d/vlan
--- vlan-1.9/debian/network/if-pre-up.d/vlan
+++ vlan-1.9/debian/network/if-pre-up.d/vlan
@@ -43,6 +43,14 @@
   ;;
 esac
 
+if [ -n "$IF_MTU" -a -n "$IF_VLAN_RAW_DEVICE" ]; then
+    CUR_DEV_MTU=`cat /sys/class/net/$IF_VLAN_RAW_DEVICE/mtu`
+    # increase the vlan raw device mtu if needed
+    if [ -n "$CUR_DEV_MTU" ] && [ $CUR_DEV_MTU -lt $IF_MTU ]; then
+        ip link set dev $IF_VLAN_RAW_DEVICE mtu $IF_MTU
+    fi
+fi
+
 if [ -n "$IF_VLAN_RAW_DEVICE" ] && [ ! -d /sys/class/net/$IFACE ]; then
     if [ ! -x /sbin/vconfig ]; then
         exit 0