diff --git a/neutron/tests/fullstack/test_segmentation_id.py b/neutron/tests/fullstack/test_segmentation_id.py
index 61759474b41..76629fb05c6 100644
--- a/neutron/tests/fullstack/test_segmentation_id.py
+++ b/neutron/tests/fullstack/test_segmentation_id.py
@@ -74,33 +74,32 @@ class TestSegmentationId(BaseSegmentationIdTest):
     ]
     num_hosts = 1
 
-    def test_change_segmentation_id_no_ports_in_network(self):
-        network = self._create_network()
-        # Now change segmentation_id to some other value
-        self._update_segmentation_id(network)
-
-    def test_change_segmentation_id_with_unbound_ports_in_network(self):
+    def test_change_segmentation_id(self):
         network = self._create_network()
+        # Now change segmentation_id to some other value when there are no
+        # ports created in network
+        network = self._update_segmentation_id(network)
 
         self.safe_client.create_subnet(
             self.project_id, network['id'], '20.0.0.0/24')
 
+        # Create some unbound and binding_failed ports
         # Unbound port
         self.safe_client.create_port(self.project_id, network['id'])
         # Port failed to bind
         self.safe_client.create_port(self.project_id, network['id'],
                                      "non-existing-host")
 
-        self._update_segmentation_id(network)
+        # Test update segmentation_id to some othe value with unbound and
+        # binding_failed ports created in the network
+        network = self._update_segmentation_id(network)
 
-    def test_change_segmentation_id_with_bound_ports_in_network(self):
-        network = self._create_network()
-
-        self.safe_client.create_subnet(
-            self.project_id, network['id'], '20.0.0.0/24')
+        # Create bound port
         self.safe_client.create_port(self.project_id, network['id'],
                                      self.environment.hosts[0].hostname)
 
+        # Test update segmentation_id to some othe value when bound ports are
+        # created in the network
         self._update_segmentation_id(network)