diff --git a/src/devices/nm-device.c b/src/devices/nm-device.c
index 72ec29a121..7a9f14c24b 100644
--- a/src/devices/nm-device.c
+++ b/src/devices/nm-device.c
@@ -9692,6 +9692,17 @@ _set_mtu (NMDevice *self, guint32 mtu)
 	}
 }
 
+static gboolean
+set_platform_mtu (NMDevice *self, guint32 mtu)
+{
+	int r;
+
+	r = nm_platform_link_set_mtu (nm_device_get_platform (self),
+	                              nm_device_get_ip_ifindex (self),
+	                              mtu);
+	return (r != -NME_PL_CANT_SET_MTU);
+}
+
 static void
 _commit_mtu (NMDevice *self, const NMIP4Config *config)
 {
@@ -9851,10 +9862,7 @@ _commit_mtu (NMDevice *self, const NMIP4Config *config)
 		}
 
 		if (mtu_desired && mtu_desired != mtu_plat) {
-			int r;
-
-			r = nm_platform_link_set_mtu (nm_device_get_platform (self), ifindex, mtu_desired);
-			if (r == -NME_PL_CANT_SET_MTU) {
+			if (!NM_DEVICE_GET_CLASS (self)->set_platform_mtu (self, mtu_desired)) {
 				anticipated_failure = TRUE;
 				success = FALSE;
 				_LOGW (LOGD_DEVICE, "mtu: failure to set MTU. %s",
@@ -17631,6 +17639,7 @@ nm_device_class_init (NMDeviceClass *klass)
 	klass->parent_changed_notify = parent_changed_notify;
 	klass->can_reapply_change = can_reapply_change;
 	klass->reapply_connection = reapply_connection;
+	klass->set_platform_mtu = set_platform_mtu;
 
 	obj_properties[PROP_UDI] =
 	    g_param_spec_string (NM_DEVICE_UDI, "", "",
diff --git a/src/devices/nm-device.h b/src/devices/nm-device.h
index 8c6c856e81..0161592652 100644
--- a/src/devices/nm-device.h
+++ b/src/devices/nm-device.h
@@ -444,6 +444,8 @@ typedef struct _NMDeviceClass {
 
 	gboolean        (* can_update_from_platform_link) (NMDevice *self, const NMPlatformLink *plink);
 
+	gboolean        (* set_platform_mtu) (NMDevice *self, guint32 mtu);
+
 	/* Controls, whether to call act_stage2_config() callback also for assuming
 	 * a device or for external activations. In this case, act_stage2_config() must
 	 * take care not to touch the device's configuration. */
diff --git a/src/devices/ovs/nm-device-ovs-interface.c b/src/devices/ovs/nm-device-ovs-interface.c
index 2868dee093..951b578892 100644
--- a/src/devices/ovs/nm-device-ovs-interface.c
+++ b/src/devices/ovs/nm-device-ovs-interface.c
@@ -121,6 +121,43 @@ _is_internal_interface (NMDevice *device)
 	return nm_streq (nm_setting_ovs_interface_get_interface_type (s_ovs_iface), "internal");
 }
 
+static void
+set_platform_mtu_cb (GError *error, gpointer user_data)
+{
+	NMDevice *device = user_data;
+	NMDeviceOvsInterface *self = NM_DEVICE_OVS_INTERFACE (device);
+
+	if (   error
+	    && !g_error_matches (error, NM_UTILS_ERROR, NM_UTILS_ERROR_CANCELLED_DISPOSING)) {
+		_LOGW (LOGD_DEVICE, "could not change mtu of '%s': %s",
+		       nm_device_get_iface (device), error->message);
+	}
+
+	g_object_unref (device);
+}
+
+static gboolean
+set_platform_mtu (NMDevice *device, guint32 mtu)
+{
+	/*
+	 * If the MTU is not set in ovsdb, Open vSwitch will change
+	 * the MTU of an internal interface to match the minimum of
+	 * the other interfaces in the bridge.
+	 */
+	/* FIXME(shutdown): the function should become cancellable so
+	 * that it doesn't need to hold a reference to the device, and
+	 * it can be stopped during shutdown.
+	 */
+	if (_is_internal_interface (device)) {
+		nm_ovsdb_set_interface_mtu (nm_ovsdb_get (),
+		                            nm_device_get_ip_iface (device),
+		                            mtu, set_platform_mtu_cb,
+		                            g_object_ref (device));
+	}
+
+	return NM_DEVICE_CLASS (nm_device_ovs_interface_parent_class)->set_platform_mtu (device, mtu);
+}
+
 static NMActStageReturn
 act_stage3_ip_config_start (NMDevice *device,
                             int addr_family,
@@ -351,4 +388,6 @@ nm_device_ovs_interface_class_init (NMDeviceOvsInterfaceClass *klass)
 	device_class->link_changed = link_changed;
 	device_class->act_stage3_ip_config_start = act_stage3_ip_config_start;
 	device_class->can_unmanaged_external_down = can_unmanaged_external_down;
+	device_class->set_platform_mtu = set_platform_mtu;
+	device_class->get_configured_mtu = nm_device_get_configured_mtu_for_wired;
 }