diff --git a/tests/port_dpb.py b/tests/port_dpb.py
index 55fbb6cc9c..5a5217ca60 100644
--- a/tests/port_dpb.py
+++ b/tests/port_dpb.py
@@ -27,6 +27,7 @@ def __init__(self, dvs, name = None):
         self._asic_db = swsscommon.DBConnector(swsscommon.ASIC_DB, dvs.redis_sock, 0)
         self._asic_db_ptbl = swsscommon.Table(self._asic_db, "ASIC_STATE:SAI_OBJECT_TYPE_PORT")
         self._counters_db = redis.Redis(unix_socket_path=self._dvs.redis_sock, db=swsscommon.COUNTERS_DB)
+        self._dvs_asic_db = dvs.get_asic_db()
 
     def set_name(self, name):
         self._name = name
@@ -173,6 +174,9 @@ def exists_in_app_db(self):
     def sync_oid(self):
         self._oid = self._counters_db.hget("COUNTERS_PORT_NAME_MAP", self.get_name())
 
+    """
+        Expectation of the caller is that the port does exist in ASIC DB.
+    """
     def exists_in_asic_db(self):
         self.sync_oid()
         if self._oid is None:
@@ -180,6 +184,17 @@ def exists_in_asic_db(self):
         (status, _) = self._asic_db_ptbl.get(self._oid)
         return status
 
+    """
+        Expectation of the caller is that the port does NOT exists in ASIC DB.
+    """
+    def not_exists_in_asic_db(self):
+        self.sync_oid()
+        if self._oid is None:
+            return True
+
+        result = self._dvs_asic_db.wait_for_deleted_entry("ASIC_STATE:SAI_OBJECT_TYPE_PORT", self._oid)
+        return (not bool(result))
+
     def verify_config_db(self):
         (status, fvs) = self._cfg_db_ptbl.get(self.get_name())
         assert(status == True)
diff --git a/tests/test_fdb_update.py b/tests/test_fdb_update.py
index 65409bb9f6..59e6cb9add 100644
--- a/tests/test_fdb_update.py
+++ b/tests/test_fdb_update.py
@@ -251,7 +251,7 @@ def test_FDBLearnedAndUpdated(self, dvs, testlog):
         dvs.set_interface_status("Ethernet72", "down")
 
         # remove vlan ip
-        self.remove_entry_tbl(dvs.cdb, "VLAN_INTERFACE", key)
+        dvs.remove_ip_address("Vlan6", "6.6.6.1/24")
 
         # bring down vlan
         dvs.set_interface_status("Vlan6", "down")
@@ -298,7 +298,7 @@ def test_FDBLearnedAndFlushed(self, dvs, testlog):
         time.sleep(2)
 
         # check that the FDB entries were inserted into ASIC DB
-        mac = get_mac_by_bridge_id(dvs, iface_2_bridge_port_id[PORT])
+        mac = self.get_mac_by_bridge_id(dvs, iface_2_bridge_port_id[PORT])
         assert server_mac in mac
 
         # bring down port
@@ -307,7 +307,7 @@ def test_FDBLearnedAndFlushed(self, dvs, testlog):
         time.sleep(2)
 
         # fdb should be flushed
-        mac = get_mac_by_bridge_id(dvs, iface_2_bridge_port_id[PORT])
+        mac = self.get_mac_by_bridge_id(dvs, iface_2_bridge_port_id[PORT])
         assert not mac
 
         # remove vlan ip
diff --git a/tests/test_port_dpb_vlan.py b/tests/test_port_dpb_vlan.py
index e24c29586c..1d08017eff 100644
--- a/tests/test_port_dpb_vlan.py
+++ b/tests/test_port_dpb_vlan.py
@@ -30,9 +30,8 @@ def test_dependency(self, dvs):
         assert(p.exists_in_asic_db() == True)
 
         self.dvs_vlan.remove_vlan_member(vlan, p.get_name())
-        time.sleep(1)
         # Verify that port is deleted
-        assert(p.exists_in_asic_db() == False)
+        assert(p.not_exists_in_asic_db() == True)
 
         #Create the port back and delete the VLAN
         p.write_to_config_db()
@@ -70,7 +69,7 @@ def test_one_port_one_vlan(self, dvs):
 
         self.dvs_vlan.remove_vlan_member(vlan, "Ethernet0")
         self.dvs_vlan.get_and_verify_vlan_member_ids(0)
-        assert(p.exists_in_asic_db() == False)
+        assert(p.not_exists_in_asic_db() == True)
         #print "Ethernet0 removed from VLAN and also from ASIC DB"
 
         dpb.create_child_ports(dvs, p, 4)
@@ -99,7 +98,7 @@ def test_one_port_one_vlan(self, dvs):
             self.dvs_vlan.remove_vlan_member(vlan, cp.get_name())
             vlan_member_count = vlan_member_count - 1
             self.dvs_vlan.get_and_verify_vlan_member_ids(vlan_member_count)
-            assert(cp.exists_in_asic_db() == False)
+            assert(cp.not_exists_in_asic_db() == True)
         #print "Deleted %s from VLAN"%port_names
 
         p.write_to_config_db()
@@ -149,7 +148,7 @@ def test_one_port_multiple_vlan(self, dvs):
 
         self.dvs_vlan.remove_vlan_member(vlans[2], "Ethernet0")
         self.dvs_vlan.get_and_verify_vlan_member_ids(0)
-        assert(p.exists_in_asic_db() == False)
+        assert(p.not_exists_in_asic_db() == True)
         #print "Ethernet0 removed from VLAN102 and also from ASIC DB"
 
         dpb.create_child_ports(dvs, p, 4)
@@ -163,7 +162,7 @@ def test_one_port_multiple_vlan(self, dvs):
             cp.delete_from_config_db()
             assert(cp.exists_in_config_db() == False)
             assert(cp.exists_in_app_db() == False)
-            assert(cp.exists_in_asic_db() == False)
+            assert(cp.not_exists_in_asic_db() == True)
         #print "Deleted %s and verified all DBs"%port_names
 
         #Add back Ethernet0
@@ -220,7 +219,7 @@ def test_all_port_10_vlans(self, dvs):
                 self.dvs_vlan.remove_vlan_member(vlan_name, port_name)
 
             self.dvs_vlan.get_and_verify_vlan_member_ids((num_ports*num_vlans)-(len(ports)*num_vlans))
-            assert(p.exists_in_asic_db() == False)
+            assert(p.not_exists_in_asic_db() == True)
         #print "All %d ports are removed from all %d VLANs and deleted"%(num_ports,num_vlans)
 
         for p in ports: