diff --git a/neutron/plugins/ml2/drivers/mlnx/mech_mlnx.py b/neutron/plugins/ml2/drivers/mlnx/mech_mlnx.py
index fd91020e49..97eb03a4c1 100644
--- a/neutron/plugins/ml2/drivers/mlnx/mech_mlnx.py
+++ b/neutron/plugins/ml2/drivers/mlnx/mech_mlnx.py
@@ -69,6 +69,9 @@ class MlnxMechanismDriver(mech_agent.SimpleAgentMechanismDriverBase):
         if self.check_segment_for_agent(segment, agent):
             vif_type = self._get_vif_type(
                 context.current[portbindings.VNIC_TYPE])
+            if segment[api.NETWORK_TYPE] in ['flat', 'vlan']:
+                self.vif_details['physical_network'] = segment[
+                    'physical_network']
             context.set_binding(segment[api.ID],
                                 vif_type,
                                 self.vif_details)
diff --git a/neutron/tests/unit/ml2/drivers/test_mech_mlnx.py b/neutron/tests/unit/ml2/drivers/test_mech_mlnx.py
index f1c2863ba1..343af4233e 100644
--- a/neutron/tests/unit/ml2/drivers/test_mech_mlnx.py
+++ b/neutron/tests/unit/ml2/drivers/test_mech_mlnx.py
@@ -116,3 +116,24 @@ class MlnxMechanismProfileTestCase(MlnxMechanismBaseTestCase):
         self.driver.try_to_bind_segment_for_agent(context, segment, agent)
         self.assertEqual('{"physical_network": "fake_physical_network"}',
                          context._binding.profile)
+
+
+class MlnxMechanismVifDetailsTestCase(MlnxMechanismBaseTestCase):
+    def setUp(self):
+        super(MlnxMechanismVifDetailsTestCase, self).setUp()
+
+    def test_vif_details_contains_physical_net(self):
+        VLAN_SEGMENTS = [{api.ID: 'vlan_segment_id',
+                          api.NETWORK_TYPE: 'vlan',
+                          api.PHYSICAL_NETWORK: 'fake_physical_network',
+                          api.SEGMENTATION_ID: 1234}]
+
+        context = base.FakePortContext(self.AGENT_TYPE,
+                                       self.AGENTS,
+                                       VLAN_SEGMENTS,
+                                       portbindings.VNIC_DIRECT)
+        segment = VLAN_SEGMENTS[0]
+        agent = self.AGENTS[0]
+        self.driver.try_to_bind_segment_for_agent(context, segment, agent)
+        set({"physical_network": "fake_physical_network"}).issubset(
+            set(context._bound_vif_details.items()))