diff --git a/src/nm-l3cfg.c b/src/nm-l3cfg.c
index aaaad02b6e..6d2f26b8d8 100644
--- a/src/nm-l3cfg.c
+++ b/src/nm-l3cfg.c
@@ -35,6 +35,13 @@ G_DEFINE_TYPE (NML3Cfg, nm_l3cfg, G_TYPE_OBJECT)
 
 /*****************************************************************************/
 
+void
+_nm_l3cfg_notify_platform_change_on_idle (NML3Cfg *self, guint32 obj_type_flags)
+{
+}
+
+/*****************************************************************************/
+
 static void
 set_property (GObject *object,
               guint prop_id,
diff --git a/src/nm-l3cfg.h b/src/nm-l3cfg.h
index 4f035e231a..731b2b46fe 100644
--- a/src/nm-l3cfg.h
+++ b/src/nm-l3cfg.h
@@ -28,6 +28,12 @@ GType nm_l3cfg_get_type (void);
 
 NML3Cfg *nm_l3cfg_new (NMNetns *netns, int ifindex);
 
+/*****************************************************************************/
+
+void _nm_l3cfg_notify_platform_change_on_idle (NML3Cfg *self, guint32 obj_type_flags);
+
+/*****************************************************************************/
+
 static inline int
 nm_l3cfg_get_ifindex (const NML3Cfg *self)
 {
diff --git a/src/nm-netns.c b/src/nm-netns.c
index cafb73164c..ebefeea649 100644
--- a/src/nm-netns.c
+++ b/src/nm-netns.c
@@ -23,10 +23,13 @@ NM_GOBJECT_PROPERTIES_DEFINE_BASE (
 );
 
 typedef struct {
+	NMNetns *_self_signal_user_data;
 	NMPlatform *platform;
 	NMPNetns *platform_netns;
 	NMPRulesManager *rules_manager;
 	GHashTable *l3cfgs;
+	CList l3cfg_signal_pending_lst_head;
+	guint signal_pending_idle_id;
 } NMNetnsPrivate;
 
 struct _NMNetns {
@@ -88,7 +91,9 @@ nm_netns_get_multi_idx (NMNetns *self)
 
 typedef struct {
 	int ifindex;
+	guint32 signal_pending_flag;
 	NML3Cfg *l3cfg;
+	CList signal_pending_lst;
 } L3CfgData;
 
 static void
@@ -96,6 +101,8 @@ _l3cfg_data_free (gpointer ptr)
 {
 	L3CfgData *l3cfg_data = ptr;
 
+	c_list_unlink_stale (&l3cfg_data->signal_pending_lst);
+
 	nm_g_slice_free (l3cfg_data);
 }
 
@@ -140,8 +147,9 @@ nm_netns_access_l3cfg (NMNetns *self,
 
 	l3cfg_data = g_slice_new (L3CfgData);
 	*l3cfg_data = (L3CfgData) {
-		.ifindex = ifindex,
-		.l3cfg   = nm_l3cfg_new (self, ifindex),
+		.ifindex            = ifindex,
+		.l3cfg              = nm_l3cfg_new (self, ifindex),
+		.signal_pending_lst = C_LIST_INIT (l3cfg_data->signal_pending_lst),
 	};
 
 	if (!g_hash_table_add (priv->l3cfgs, l3cfg_data))
@@ -160,6 +168,52 @@ nm_netns_access_l3cfg (NMNetns *self,
 
 /*****************************************************************************/
 
+static gboolean
+_platform_signal_on_idle_cb (gpointer user_data)
+{
+	gs_unref_object NMNetns *self = g_object_ref (NM_NETNS (user_data));
+	NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
+	L3CfgData *l3cfg_data;
+
+	while ((l3cfg_data = c_list_first_entry (&priv->l3cfg_signal_pending_lst_head, L3CfgData, signal_pending_lst))) {
+		c_list_unlink (&l3cfg_data->signal_pending_lst);
+		_nm_l3cfg_notify_platform_change_on_idle (l3cfg_data->l3cfg,
+		                                          nm_steal_int (&l3cfg_data->signal_pending_flag));
+	}
+
+	priv->signal_pending_idle_id = 0;
+	return G_SOURCE_REMOVE;
+}
+
+static void
+_platform_signal_cb (NMPlatform *platform,
+                     int obj_type_i,
+                     int ifindex,
+                     gconstpointer platform_object,
+                     int change_type_i,
+                     NMNetns **p_self)
+{
+	NMNetns *self = NM_NETNS (*p_self);
+	NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
+	const NMPObjectType obj_type = obj_type_i;
+	L3CfgData *l3cfg_data;
+
+	l3cfg_data = g_hash_table_lookup (priv->l3cfgs, &ifindex);
+	if (!l3cfg_data)
+		return;
+
+	l3cfg_data->signal_pending_flag |= nmp_object_type_to_flags (obj_type);
+
+	if (!c_list_is_empty (&l3cfg_data->signal_pending_lst))
+		return;
+
+	c_list_link_tail (&priv->l3cfg_signal_pending_lst_head, &l3cfg_data->signal_pending_lst);
+	if (priv->signal_pending_idle_id == 0)
+		priv->signal_pending_idle_id = g_idle_add (_platform_signal_on_idle_cb, self);
+}
+
+/*****************************************************************************/
+
 static void
 set_property (GObject *object, guint prop_id,
               const GValue *value, GParamSpec *pspec)
@@ -186,6 +240,10 @@ set_property (GObject *object, guint prop_id,
 static void
 nm_netns_init (NMNetns *self)
 {
+	NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
+
+	priv->_self_signal_user_data = self;
+	c_list_init (&priv->l3cfg_signal_pending_lst_head);
 }
 
 static void
@@ -226,6 +284,8 @@ constructed (GObject *object)
 	                                       NMP_RULES_MANAGER_EXTERN_WEAKLY_TRACKED_USER_TAG);
 
 	G_OBJECT_CLASS (nm_netns_parent_class)->constructed (object);
+
+	g_signal_connect (priv->platform, NM_PLATFORM_SIGNAL_LINK_CHANGED, G_CALLBACK (_platform_signal_cb), &priv->_self_signal_user_data);
 }
 
 NMNetns *
@@ -243,6 +303,12 @@ dispose (GObject *object)
 	NMNetnsPrivate *priv = NM_NETNS_GET_PRIVATE (self);
 
 	nm_assert (nm_g_hash_table_size (priv->l3cfgs) == 0);
+	nm_assert (c_list_is_empty (&priv->l3cfg_signal_pending_lst_head));
+
+	nm_clear_g_source (&priv->signal_pending_idle_id);
+
+	if (priv->platform)
+		g_signal_handlers_disconnect_by_data (priv->platform, &priv->_self_signal_user_data);
 
 	g_clear_object (&priv->platform);
 	g_clear_pointer (&priv->l3cfgs, g_hash_table_unref);
diff --git a/src/nm-types.h b/src/nm-types.h
index 5835c64188..6277e4d811 100644
--- a/src/nm-types.h
+++ b/src/nm-types.h
@@ -236,6 +236,17 @@ typedef enum {
 	NMP_OBJECT_TYPE_MAX = __NMP_OBJECT_TYPE_LAST - 1,
 } NMPObjectType;
 
+static inline guint32
+nmp_object_type_to_flags (NMPObjectType obj_type)
+{
+	G_STATIC_ASSERT_EXPR (NMP_OBJECT_TYPE_MAX < 32);
+
+	nm_assert (_NM_INT_NOT_NEGATIVE (obj_type));
+	nm_assert (obj_type < NMP_OBJECT_TYPE_MAX);
+
+	return ((guint32) 1u) << obj_type;
+}
+
 /**
  * NMIPConfigMergeFlags:
  * @NM_IP_CONFIG_MERGE_DEFAULT: no flags set