diff --git a/pinos/client/context.c b/pinos/client/context.c
index b61f45086..e7f2e01a3 100644
--- a/pinos/client/context.c
+++ b/pinos/client/context.c
@@ -255,6 +255,46 @@ client_dispatch_func (void             *object,
   return SPA_RESULT_OK;
 }
 
+static SpaResult
+link_dispatch_func (void             *object,
+                    PinosMessageType  type,
+                    void             *message,
+                    void             *data)
+{
+  PinosContextImpl *impl = data;
+  PinosContext *this = &impl->this;
+  PinosProxy *proxy = object;
+
+  switch (type) {
+    case PINOS_MESSAGE_LINK_INFO:
+    {
+      PinosMessageLinkInfo *m = message;
+      PinosSubscriptionEvent event;
+
+      pinos_log_debug ("got link info %d", type);
+      if (proxy->user_data == NULL)
+        event = PINOS_SUBSCRIPTION_EVENT_NEW;
+      else
+        event = PINOS_SUBSCRIPTION_EVENT_CHANGE;
+
+      proxy->user_data = pinos_link_info_update (proxy->user_data, m->info);
+
+      if (impl->subscribe_func) {
+        impl->subscribe_func (this,
+                              event,
+                              proxy->type,
+                              proxy->id,
+                              impl->subscribe_data);
+      }
+      break;
+    }
+    default:
+      pinos_log_warn ("unhandled message %d", type);
+      break;
+  }
+  return SPA_RESULT_OK;
+}
+
 static SpaResult
 registry_dispatch_func (void             *object,
                         PinosMessageType  type,
@@ -291,6 +331,11 @@ registry_dispatch_func (void             *object,
         proxy->dispatch_func = client_dispatch_func;
         proxy->dispatch_data = impl;
       } else if (!strcmp (ng->type, PINOS_LINK_URI)) {
+        proxy = pinos_proxy_new (this,
+                                 SPA_ID_INVALID,
+                                 this->uri.link);
+        proxy->dispatch_func = link_dispatch_func;
+        proxy->dispatch_data = impl;
       }
       if (proxy) {
         PinosMessageBind m;
diff --git a/pinos/client/introspect.c b/pinos/client/introspect.c
index 81727650f..806b294ef 100644
--- a/pinos/client/introspect.c
+++ b/pinos/client/introspect.c
@@ -277,3 +277,39 @@ pinos_client_info_free   (PinosClientInfo       *info)
     pinos_spa_dict_destroy (info->props);
   free (info);
 }
+
+PinosLinkInfo *
+pinos_link_info_update (PinosLinkInfo       *info,
+                        const PinosLinkInfo *update)
+{
+  uint64_t change_mask;
+
+  if (update == NULL)
+    return info;
+
+  if (info == NULL) {
+    info = calloc (1, sizeof (PinosLinkInfo));
+    change_mask = ~0;
+  } else {
+    change_mask = info->change_mask | update->change_mask;
+  }
+  info->id = update->id;
+  info->change_mask = change_mask;
+
+  if (update->change_mask & (1 << 0))
+    info->output_node_id = update->output_node_id;
+  if (update->change_mask & (1 << 1))
+    info->output_port_id = update->output_port_id;
+  if (update->change_mask & (1 << 2))
+    info->input_node_id = update->input_node_id;
+  if (update->change_mask & (1 << 3))
+    info->input_port_id = update->input_port_id;
+
+  return info;
+}
+
+void
+pinos_link_info_free (PinosLinkInfo       *info)
+{
+  free (info);
+}
diff --git a/pinos/client/introspect.h b/pinos/client/introspect.h
index fe714159a..1a20f27e8 100644
--- a/pinos/client/introspect.h
+++ b/pinos/client/introspect.h
@@ -301,6 +301,10 @@ struct _PinosLinkInfo {
   uint32_t input_port_id;
 };
 
+PinosLinkInfo *    pinos_link_info_update (PinosLinkInfo       *info,
+                                           const PinosLinkInfo *update);
+void               pinos_link_info_free   (PinosLinkInfo       *info);
+
 
 /**
  * PinosLinkInfoCallback:
diff --git a/pinos/client/stream.c b/pinos/client/stream.c
index 660914a7b..41f53935f 100644
--- a/pinos/client/stream.c
+++ b/pinos/client/stream.c
@@ -606,37 +606,6 @@ stream_dispatch_func (void             *object,
   PinosStreamImpl *impl = SPA_CONTAINER_OF (stream, PinosStreamImpl, this);
 
   switch (type) {
-    case PINOS_MESSAGE_SYNC:
-    case PINOS_MESSAGE_GET_REGISTRY:
-    case PINOS_MESSAGE_BIND:
-    case PINOS_MESSAGE_DESTROY:
-    case PINOS_MESSAGE_REMOVE_ID:
-    case PINOS_MESSAGE_CREATE_NODE:
-    case PINOS_MESSAGE_CREATE_CLIENT_NODE:
-    case PINOS_MESSAGE_NODE_UPDATE:
-    case PINOS_MESSAGE_PORT_UPDATE:
-    case PINOS_MESSAGE_PORT_STATUS_CHANGE:
-    case PINOS_MESSAGE_NODE_STATE_CHANGE:
-    case PINOS_MESSAGE_CORE_INFO:
-    case PINOS_MESSAGE_MODULE_INFO:
-    case PINOS_MESSAGE_NODE_INFO:
-    case PINOS_MESSAGE_CLIENT_INFO:
-    case PINOS_MESSAGE_LINK_INFO:
-      pinos_log_warn ("got unexpected message %d", type);
-      break;
-
-    case PINOS_MESSAGE_NOTIFY_DONE:
-      pinos_log_warn ("notify done %d", type);
-      break;
-
-    case PINOS_MESSAGE_NOTIFY_GLOBAL:
-      pinos_log_warn ("notify global %d", type);
-      break;
-
-    case PINOS_MESSAGE_NOTIFY_GLOBAL_REMOVE:
-      pinos_log_warn ("notify global %d", type);
-      break;
-
     case PINOS_MESSAGE_CREATE_NODE_DONE:
       pinos_log_warn ("create node done %d", type);
       break;
@@ -838,6 +807,7 @@ stream_dispatch_func (void             *object,
       pinos_log_debug ("transport update %d %p", impl->rtfd, impl->trans);
       break;
     }
+    default:
     case PINOS_MESSAGE_INVALID:
       pinos_log_warn ("unhandled message %d", type);
       break;
diff --git a/pinos/modules/module-protocol-native.c b/pinos/modules/module-protocol-native.c
index 4577ef3bc..8267f363a 100644
--- a/pinos/modules/module-protocol-native.c
+++ b/pinos/modules/module-protocol-native.c
@@ -82,17 +82,33 @@ typedef struct {
 } PinosProtocolNativeClient;
 
 static void
-client_destroy (PinosProtocolNativeClient *this)
+sync_destroy (void      *object,
+              void      *data,
+              SpaResult  res,
+              uint32_t   id)
 {
-  pinos_client_destroy (this->client);
-  spa_list_remove (&this->link);
-  pinos_loop_destroy_source (this->impl->core->main_loop->loop,
-                             this->source);
+  PinosProtocolNativeClient *this = object;
+
   pinos_connection_destroy (this->connection);
   close (this->fd);
   free (this);
 }
 
+static void
+client_destroy (PinosProtocolNativeClient *this)
+{
+  pinos_loop_destroy_source (this->impl->core->main_loop->loop,
+                             this->source);
+  pinos_client_destroy (this->client);
+  spa_list_remove (&this->link);
+
+  pinos_main_loop_defer (this->impl->core->main_loop,
+                         this,
+                         SPA_RESULT_WAIT_SYNC,
+                         sync_destroy,
+                         this);
+}
+
 static SpaResult
 client_send_func (void             *object,
                   uint32_t          id,
diff --git a/pinos/server/core.c b/pinos/server/core.c
index b72e4c303..71a820a1c 100644
--- a/pinos/server/core.c
+++ b/pinos/server/core.c
@@ -277,6 +277,8 @@ pinos_core_add_global (PinosCore           *core,
                        PinosBindFunc        bind)
 {
   PinosGlobal *global;
+  PinosResource *registry;
+  PinosMessageNotifyGlobal ng;
 
   global = calloc (1, sizeof (PinosGlobal));
   global->core = core;
@@ -294,6 +296,14 @@ pinos_core_add_global (PinosCore           *core,
 
   pinos_log_debug ("global %p: new %u", global, global->id);
 
+  ng.id = global->id;
+  ng.type = spa_id_map_get_uri (core->uri.map, global->type);
+  spa_list_for_each (registry, &core->registry_resource_list, link) {
+    pinos_resource_send_message (registry,
+                                 PINOS_MESSAGE_NOTIFY_GLOBAL,
+                                 &ng,
+                                 true);
+  }
   return global;
 }
 
@@ -313,6 +323,8 @@ void
 pinos_global_destroy (PinosGlobal *global)
 {
   PinosCore *core = global->core;
+  PinosResource *registry;
+  PinosMessageNotifyGlobalRemove ng;
 
   pinos_log_debug ("global %p: destroy", global);
   pinos_signal_emit (&global->destroy_signal, global);
@@ -322,6 +334,14 @@ pinos_global_destroy (PinosGlobal *global)
   spa_list_remove (&global->link);
   pinos_signal_emit (&core->global_removed, core, global);
 
+  ng.id = global->id;
+  spa_list_for_each (registry, &core->registry_resource_list, link) {
+    pinos_resource_send_message (registry,
+                                 PINOS_MESSAGE_NOTIFY_GLOBAL_REMOVE,
+                                 &ng,
+                                 true);
+  }
+
   pinos_main_loop_defer (core->main_loop,
                          global,
                          SPA_RESULT_WAIT_SYNC,
diff --git a/pinos/server/link.c b/pinos/server/link.c
index 59a604a5d..35d62948a 100644
--- a/pinos/server/link.c
+++ b/pinos/server/link.c
@@ -681,24 +681,48 @@ link_dispatch_func (void             *object,
   return SPA_RESULT_OK;
 }
 
+static void
+link_unbind_func (void *data)
+{
+  PinosResource *resource = data;
+  spa_list_remove (&resource->link);
+}
+
 static void
 link_bind_func (PinosGlobal *global,
                 PinosClient *client,
                 uint32_t     version,
                 uint32_t     id)
 {
+  PinosLink *this = global->object;
   PinosResource *resource;
+  PinosMessageLinkInfo m;
+  PinosLinkInfo info;
 
   resource = pinos_resource_new (client,
                                  id,
                                  global->core->uri.link,
                                  global->object,
-                                 NULL);
+                                 link_unbind_func);
 
   resource->dispatch_func = link_dispatch_func;
-  resource->dispatch_data = client;
+  resource->dispatch_data = global;
 
   pinos_log_debug ("link %p: bound to %d", global->object, resource->id);
+
+  spa_list_insert (this->resource_list.prev, &resource->link);
+
+  m.info = &info;
+  info.id = resource->id;
+  info.change_mask = ~0;
+  info.output_node_id = this->output ? this->output->node->global->id : -1;
+  info.output_port_id = this->output ? this->output->port_id : -1;
+  info.input_node_id = this->input ? this->input->node->global->id : -1;
+  info.input_port_id = this->input ? this->input->port_id : -1;
+  pinos_resource_send_message (resource,
+                               PINOS_MESSAGE_LINK_INFO,
+                               &m,
+                               true);
 }
 
 PinosLink *
@@ -722,6 +746,7 @@ pinos_link_new (PinosCore       *core,
   this->input = input;
   this->output = output;
 
+  spa_list_init (&this->resource_list);
   pinos_signal_init (&this->destroy_signal);
 
   impl->format_filter = format_filter;
diff --git a/pinos/server/link.h b/pinos/server/link.h
index 8eefe4fe2..d9f522e75 100644
--- a/pinos/server/link.h
+++ b/pinos/server/link.h
@@ -52,9 +52,10 @@ struct _PinosLink {
   PINOS_SIGNAL (destroy_signal, (PinosListener *,
                                  PinosLink *));
 
+  SpaList resource_list;
+
   PinosPort    *output;
   SpaList       output_link;
-
   PinosPort    *input;
   SpaList       input_link;