diff --git a/xos/synchronizer/models/volt.xproto b/xos/synchronizer/models/volt.xproto
index cc9b652..60fb08d 100644
--- a/xos/synchronizer/models/volt.xproto
+++ b/xos/synchronizer/models/volt.xproto
@@ -34,6 +34,7 @@
     optional string of_id = 13 [help_text = "openflow id", db_index = False, feedback_state = True];
     optional string dp_id = 14 [help_text = "datapath id", db_index = False];
 
+    required string uplink = 15 [help_text = "uplink port", db_index = False];
     required string driver = 16 [default="voltha", help_text = "Olt driver", db_index = False];
 
     optional string switch_datapath_id = 17 [help_text = "Fabric switch to which the OLT is connected", db_index = False];
diff --git a/xos/synchronizer/steps/test_sync_olt_device.py b/xos/synchronizer/steps/test_sync_olt_device.py
index c656c1d..38da1a1 100644
--- a/xos/synchronizer/steps/test_sync_olt_device.py
+++ b/xos/synchronizer/steps/test_sync_olt_device.py
@@ -42,6 +42,17 @@
     raise Exception("Unable to find service=%s xproto=%s" % (service_name, xproto_name))
 # END generate model from xproto
 
+def match_onos_req(req):
+    request = req.json()['devices']
+    if not request['of:0000000ce2314000']:
+        return False
+    else:
+        if not request['of:0000000ce2314000']['basic']['driver'] == 'voltha':
+            return False
+        if not request['of:0000000ce2314000']['accessDevice']['vlan'] == 1 or not request['of:0000000ce2314000']['accessDevice']['uplink'] == "129":
+            return False
+    return True
+
 def match_json(desired, req):
     if desired!=req.json():
         raise Exception("Got request %s, but body is not matching" % req.url)
@@ -93,6 +104,7 @@
         o.device_type = "ponsim_olt"
         o.host = "172.17.0.1"
         o.port = "50060"
+        o.uplink = "129"
         o.driver = "voltha"
         o.name = "Test Device"