diff --git a/src/vnsw/agent/oper/test/test_logical_intf.cc b/src/vnsw/agent/oper/test/test_logical_intf.cc
index 1240170c4e1..ee6e20b0ee8 100644
--- a/src/vnsw/agent/oper/test/test_logical_intf.cc
+++ b/src/vnsw/agent/oper/test/test_logical_intf.cc
@@ -154,6 +154,65 @@ TEST_F(IntfTest, basic_1) {
     client->WaitForIdle();
 }
 
+//https://bugs.launchpad.net/juniperopenstack/r3.0/+bug/1550459
+TEST_F(IntfTest, bug_1550459) {
+    AddVrf("vrf1");
+    AddVn("vn1", 1);
+    AddPhysicalInterface("pi1", 1, "pi1");
+    AddLogicalInterface("li1", 1, "li1", 100);
+    AddLink("physical-interface", "pi1", "logical-interface", "li1");
+
+    AddVmi(1, 1);
+    client->WaitForIdle();
+    AddLink(1, 1);
+    client->WaitForIdle();
+    AddLink("virtual-network", "vn1", "routing-instance", "vrf1");
+    AddLink("virtual-machine-interface", "vmi1",
+            "virtual-network", "vn1");
+    AddLink("virtual-machine-interface-routing-instance", "vmi1",
+            "routing-instance", "vrf1",
+            "virtual-machine-interface-routing-instance");
+    AddLink("virtual-machine-interface-routing-instance", "vmi1",
+            "virtual-machine-interface", "vmi1",
+            "virtual-machine-interface-routing-instance");
+    client->WaitForIdle();
+
+    WAIT_FOR(1000, 100, (LogicalInterfaceGet(1, "li1") != NULL));
+    client->WaitForIdle();
+    LogicalInterface *li = LogicalInterfaceGet(1, "li1");
+
+    WAIT_FOR(1000, 100, (li->vm_interface() != NULL));
+    client->WaitForIdle();
+    InterfaceRef vmi_ref = li->vm_interface();
+    VmInterface *vmi = static_cast<VmInterface *>(vmi_ref.get());
+    VmInterface::Delete(Agent::GetInstance()->interface_table(),
+                        vmi->GetUuid(), VmInterface::CONFIG);
+    client->WaitForIdle();
+    AddVmi(1, 1);
+    client->WaitForIdle();
+    VmInterface::Delete(Agent::GetInstance()->interface_table(),
+                        vmi->GetUuid(), VmInterface::CONFIG);
+    client->WaitForIdle();
+
+    DelLink(1, 1);
+    DelLink("virtual-network", "vn1", "routing-instance", "vrf1");
+    DelLink("virtual-machine-interface", "vmi1",
+            "virtual-network", "vn1");
+    DelLink("virtual-machine-interface-routing-instance", "vmi1",
+            "routing-instance", "vrf1");
+    DelLink("virtual-machine-interface-routing-instance", "vmi1",
+            "virtual-machine-interface", "vmi1");
+    client->WaitForIdle();
+    DelLink("physical-interface", "pi1", "logical-interface", "li1");
+    vmi_ref.reset();
+    DelVmi(1);
+    DeleteLogicalInterface("li1");
+    DeletePhysicalInterface("pi1");
+    DelVrf("vrf1");
+    DelVn("vn1");
+    client->WaitForIdle();
+}
+
 int main(int argc, char **argv) {
     GETUSERARGS();
 
diff --git a/src/vnsw/agent/oper/vm_interface.cc b/src/vnsw/agent/oper/vm_interface.cc
index 958d88e2c74..7b96ab9f5fb 100644
--- a/src/vnsw/agent/oper/vm_interface.cc
+++ b/src/vnsw/agent/oper/vm_interface.cc
@@ -1687,9 +1687,9 @@ bool VmInterfaceConfigData::OnDelete(const InterfaceTable *table,
     if (vmi->IsConfigurerSet(VmInterface::CONFIG) == false)
         return true;
 
-    vmi->ResetConfigurer(VmInterface::CONFIG);
     VmInterfaceConfigData data(NULL, NULL);
     vmi->Resync(table, &data);
+    vmi->ResetConfigurer(VmInterface::CONFIG);
     return true;
 }
 
@@ -1710,6 +1710,7 @@ bool VmInterfaceConfigData::OnResync(const InterfaceTable *table,
         ecmp_load_balance_changed || static_route_config_changed)
         *force_update = true;
 
+    vmi->SetConfigurer(VmInterface::CONFIG);
     return ret;
 }
 
@@ -2093,9 +2094,9 @@ bool VmInterfaceNovaData::OnDelete(const InterfaceTable *table,
     if (vmi->IsConfigurerSet(VmInterface::INSTANCE_MSG) == false)
         return true;
 
-    vmi->ResetConfigurer(VmInterface::CONFIG);
     VmInterfaceConfigData data(NULL, NULL);
     vmi->Resync(table, &data);
+    vmi->ResetConfigurer(VmInterface::CONFIG);
     vmi->ResetConfigurer(VmInterface::INSTANCE_MSG);
     return true;
 }