diff --git a/esds/node.py b/esds/node.py
index 7fc62dc..03c7457 100644
--- a/esds/node.py
+++ b/esds/node.py
@@ -13,7 +13,7 @@ class Node:
         self.rargs=None # Store the requests arguments
         self.plugins=list() # Contains all registered node plugins
         self.rqueue=queue.Queue() # Receive simulator acknowledgments
-        self.chest={"state":"running", "turned_on":True, "request": None, "interfaces":dict(), "interfaces_queue_size":dict()}
+        self.chest={"state":"running", "turned_on":True, "request": None, "interfaces":dict(), "interfaces_queue_size":dict(), "pending_plugin_notify":0}
         for interface in interfaces:
             self.chest["interfaces"][interface]=queue.Queue()
             self.chest["interfaces_queue_size"][interface]=0
@@ -200,7 +200,10 @@ class Node:
         ack=None
         while True:
             ack=self.rqueue.get() # Wait for simulator acknowledgments
-            if ack[0] not in ack_types:
+            if ack[0] == "plugin_notify":
+                self.plugin_notify(ack[1],ack[2])
+                self["pending_plugin_notify"]-=1
+            elif ack[0] not in ack_types:
                 ack_buffer.append(ack)
             else:
                 break
diff --git a/esds/simulator.py b/esds/simulator.py
index 960d87f..f56dfcb 100644
--- a/esds/simulator.py
+++ b/esds/simulator.py
@@ -124,9 +124,6 @@ class Simulator:
         sorted_indexes=np.lexsort((self.events[:,3],self.events[:,1]))
         self.events=self.events[sorted_indexes]
     
-    def notify_node_plugin(self,node,function,args):
-        self.nodes[node]["plugin_notify"][function]=args
-
     def sync_node_non_blocking(self,node, timeout_remove_only=False):
         """
         Process all call request and wait for Node.sync() to return
@@ -362,7 +359,13 @@ class Simulator:
         selector = self.netmat[interface]["bandwidth"][node.node_id,] > 0
         return np.arange(0,selector.shape[0])[selector]
 
-            
+    def notify_node_plugins(self,node,callback,args):
+        node[pending_plugin_notify]+=1
+        self.nodes[int(event[2][1])].rqueue.put(("plugin_notify",callback,args))
+        # Now ensure that all callbacks are called before continuing
+        while node[pending_plugin_notify] > 0:
+            pass
+
     def add_event(self,event_type,event_ts,event,priority=2):
         """
         Call this function with sort=True the least amount of time possible