diff --git a/protos/openolt.proto b/protos/openolt.proto
index 7041800..c9f6d98 100644
--- a/protos/openolt.proto
+++ b/protos/openolt.proto
@@ -63,10 +63,6 @@
 
 message OltIndication {
     string oper_state = 1;	// up, down
-    string mac = 2;
-    string serial_number = 3;
-    string manufacturer = 4;
-    string name = 5;
 }
 
 message IntfIndication {