diff --git a/nodeshot/networking/links/settings.py b/nodeshot/networking/links/settings.py
old mode 100755
new mode 100644
index c57a1cfa..d7b15b1c
--- a/nodeshot/networking/links/settings.py
+++ b/nodeshot/networking/links/settings.py
@@ -1,4 +1,5 @@
 from django.conf import settings
+from datetime import timedelta
 
 DEFAULT_PARSERS = [
     ('netdiff.OlsrParser', 'OLSR (jsoninfo)'),
@@ -9,3 +10,12 @@
 ]
 
 PARSERS = DEFAULT_PARSERS + getattr(settings, 'NODESHOT_NETDIFF_PARSERS', [])
+
+TOPOLOGY_UPDATE_INTERVAL = getattr(settings, 'NODESHOT_TOPOLOGY_UPDATE_INTERVAL', 3)
+
+settings.CELERYBEAT_SCHEDULE.update({
+    'update_topology': {
+        'task': 'nodeshot.networking.links.tasks.update_topology',
+        'schedule': timedelta(minutes=TOPOLOGY_UPDATE_INTERVAL),
+    }
+})