Isisd is now able to remove addresses from circuit and trigger LSP updates
if it's done. Some random fixes as well and update to sample configuration.
diff --git a/isisd/isis_events.c b/isisd/isis_events.c
index a99869b..16c6991 100644
--- a/isisd/isis_events.c
+++ b/isisd/isis_events.c
@@ -303,6 +303,20 @@
   return;
 }
 
+void
+isis_event_int_reach_change (struct isis_circuit *circuit)
+{
+  if (!circuit || !circuit->area)
+    return;
+
+  zlog_info ("ISIS-Evt (%s) Internal reachability change",
+	     circuit->area->area_tag);
+
+  lsp_regenerate_schedule (circuit->area);
+
+  return;
+}
+
 /* events supporting code */
 
 int