diff --git a/neutron/db/db_base_plugin_common.py b/neutron/db/db_base_plugin_common.py
index 164943ded21..fbaae818014 100644
--- a/neutron/db/db_base_plugin_common.py
+++ b/neutron/db/db_base_plugin_common.py
@@ -263,6 +263,11 @@ class DbBasePluginCommon(object):
             raise exceptions.SubnetNotFound(subnet_id=id)
         return subnet
 
+    def _network_exists(self, context, network_id):
+        query = model_query.query_with_hooks(
+            context, models_v2.Network, field='id')
+        return query.filter(models_v2.Network.id == network_id).first()
+
     def _get_subnet_object(self, context, id):
         subnet = subnet_obj.Subnet.get_object(context, id=id)
         if not subnet:
diff --git a/neutron/db/db_base_plugin_v2.py b/neutron/db/db_base_plugin_v2.py
index 392cd5d0bc6..2d021a32e98 100644
--- a/neutron/db/db_base_plugin_v2.py
+++ b/neutron/db/db_base_plugin_v2.py
@@ -1323,7 +1323,7 @@ class NeutronDbPluginV2(db_base_plugin_common.DbBasePluginCommon,
         if not validators.is_attr_set(network_id):
             msg = _("network_id must be specified.")
             raise exc.InvalidInput(error_message=msg)
-        if not network_obj.Network.objects_exist(context, id=network_id):
+        if not self._network_exists(context, network_id):
             raise exc.NetworkNotFound(net_id=network_id)
 
         subnetpool = subnetpool_obj.SubnetPool.get_object(context,
@@ -1433,7 +1433,8 @@ class NeutronDbPluginV2(db_base_plugin_common.DbBasePluginCommon,
             port_data['mac_address'] = p.get('mac_address')
         with db_api.CONTEXT_WRITER.using(context):
             # Ensure that the network exists.
-            self._get_network(context, network_id)
+            if not self._network_exists(context, network_id):
+                raise exc.NetworkNotFound(net_id=network_id)
 
             # Create the port
             db_port = self._create_db_port_obj(context, port_data)