diff --git a/protos/voltha_protos/tech_profile.proto b/protos/voltha_protos/tech_profile.proto
index c82d52f..493f2a3 100755
--- a/protos/voltha_protos/tech_profile.proto
+++ b/protos/voltha_protos/tech_profile.proto
@@ -129,6 +129,7 @@
     fixed32 port_no = 5;
     repeated TrafficQueue traffic_queues = 6;
     fixed32 tech_profile_id = 7;
+    fixed32 network_intf_id = 8;
 }
 
 message InstanceControl {