diff --git a/tosca-configs/att-workflow/onlab-pod2-olt.yaml b/tosca-configs/att-workflow/onlab-pod2-olt.yaml
index f712a1a..7167318 100755
--- a/tosca-configs/att-workflow/onlab-pod2-olt.yaml
+++ b/tosca-configs/att-workflow/onlab-pod2-olt.yaml
@@ -41,7 +41,8 @@
         outer_tpid: "0x8100"
         uplink: "65536"
         nas_id: "NAS_ID"
+        serial_number: "10.90.0.122:9191"
       requirements:
         - volt_service:
             node: service#volt
-            relationship: tosca.relationships.BelongsToOne
+            relationship: tosca.relationships.BelongsToOne
\ No newline at end of file