diff --git a/xos/api/service/vtn.py b/xos/api/service/vtn.py
index 5ab5223..01c32cb 100644
--- a/xos/api/service/vtn.py
+++ b/xos/api/service/vtn.py
@@ -9,6 +9,7 @@
 from rest_framework import status
 from core.models import *
 from services.vtn.models import VTNService
+from services.vtn.vtnnetport import VTNNetwork, VTNPort
 from django.forms import widgets
 from django.conf.urls import patterns, url
 from api.xosapi_helpers import PlusModelSerializer, XOSViewSet, ReadOnlyField
@@ -18,8 +19,6 @@
 import json
 import subprocess
 
-VTN_SERVCOMP_KINDS=["PRIVATE","VSG"]
-
 class VTNServiceSerializer(PlusModelSerializer):
     id = ReadOnlyField()
 
@@ -43,108 +42,6 @@
     def getHumanReadableName(self, obj):
         return obj.__unicode__()
 
-class VTNNetwork(object):
-    def __init__(self, xos_network=None):
-        self.xos_network = xos_network
-
-    def get_controller_network(self):
-        for cn in self.xos_network.controllernetworks.all():
-            # TODO: find the right one
-            return cn
-        return None
-
-    def get_cn_field(self, fieldname):
-        cn=self.get_controller_network()
-        if not cn:
-            return None
-        return getattr(cn, fieldname)
-
-    @property
-    def id(self):
-        return self.get_cn_field("net_id")
-
-    @property
-    def name(self):
-        return self.xos_network.name
-
-    @property
-    def subnet(self):
-        return self.get_cn_field("subnet")
-
-    @property
-    def gateway(self):
-        return self.get_cn_field("gateway")
-
-    @property
-    def segmentation_id(self):
-        return self.get_cn_field("segmentation_id")
-
-    @property
-    def type(self):
-        return self.xos_network.template.vtn_kind
-
-    @property
-    def providerNetworks(self):
-        slice = self.xos_network.owner
-        service = slice.service
-        if not service:
-            return []
-
-        nets=[]
-        for tenant in service.subscribed_tenants.all():
-            if tenant.provider_service:
-                bidirectional = tenant.connect_method!="private-unidirectional"
-                for slice in tenant.provider_service.slices.all():
-                    for net in slice.networks.all():
-                        if net.template.vtn_kind not in VTN_SERVCOMP_KINDS:
-                            continue
-
-                        if not net.controllernetworks.exists():
-                            continue
-
-                        cn = net.controllernetworks.all()[0]
-                        nets.append({"id": cn.net_id,
-                                     "name": net.name,
-                                     "bidirectional": bidirectional})
-        return nets
-
-    @property
-    def subscriberNetworks(self):
-        slice = self.xos_network.owner
-        service = slice.service
-        if not service:
-            return []
-
-        nets=[]
-        for tenant in service.provided_tenants.all():
-            if tenant.subscriber_service:
-                bidirectional = tenant.connect_method!="private-unidirectional"
-                for slice in tenant.subscriber_service.slices.all():
-                    for net in slice.networks.all():
-                        if net.template.vtn_kind not in VTN_SERVCOMP_KINDS:
-                            continue
-
-                        if not net.controllernetworks.exists():
-                            continue
-
-                        cn = net.controllernetworks.all()[0]
-                        nets.append({"id": cn.net_id,
-                                     "name": net.name,
-                                     "bidirectional": bidirectional})
-        return nets
-
-    @property
-    def ownerSliceName(self):
-        if self.xos_network.owner:
-            return self.xos_network.owner.name
-        return None
-
-    @property
-    def ownerServiceName(self):
-        if self.xos_network.owner and self.xos_network.owner.service:
-            return self.xos_network.owner.service.name
-        return None
-
 class VTNNetworkSerializer(serializers.Serializer):
     id = ReadOnlyField()
     name = serializers.CharField(required=False)
@@ -172,70 +69,6 @@
     def getProviderNetworks(self, obj):
          return obj.providerNetworks
 
-class VTNPort(object):
-    def __init__(self, xos_port=None):
-        self.xos_port = xos_port
-
-    def get_controller_network(self):
-        for cn in self.xos_port.network.controllernetworks.all():
-            # TODO: find the right one
-            return cn
-        return None
-
-    def get_vsg_tenant(self):
-        from services.vsg.models import VSGTenant
-        for tenant in VSGTenant.get_tenant_objects().all():
-            if tenant.instance == self.xos_port.instance:
-                return tenant
-        return None
-
-    @property
-    def vlan_id(self):
-        if not self.xos_port.instance:
-            return None
-        tags = Tag.select_by_content_object(self.xos_port.instance).filter(name="s_tag")
-        if not tags:
-            return None
-        return tags[0].value
-
-    @property
-    def floating_address_pairs(self):
-        address_pairs = []
-        vsg = self.get_vsg_tenant()
-        if vsg:
-            if vsg.wan_container_ip and vsg.wan_container_mac:
-                address_pairs.append({"ip_address": vsg.wan_container_ip,
-                                      "mac_address": vsg.wan_container_mac})
-
-            if vsg.wan_vm_ip and vsg.wan_vm_mac:
-                address_pairs.append({"ip_address": vsg.wan_vm_ip,
-                                      "mac_address": vsg.wan_vm_mac})
-
-        return address_pairs
-
-    @property
-    def id(self):
-        return self.xos_port.port_id
-
-    @property
-    def name(self):
-        return "port-%s" % self.xos_port.id
-
-    @property
-    def network_id(self):
-        cn = self.get_controller_network()
-        if not cn:
-            return None
-        return cn.net_id
-
-    @property
-    def mac_address(self):
-        return self.xos_port.mac
-
-    @property
-    def ip_address(self):
-        return self.xos_port.ip
-
 class VTNPortSerializer(serializers.Serializer):
     id = ReadOnlyField()
     name = serializers.CharField(required=False)
diff --git a/xos/vtn-onboard.yaml b/xos/vtn-onboard.yaml
index 9141dbd..edee561 100644
--- a/xos/vtn-onboard.yaml
+++ b/xos/vtn-onboard.yaml
@@ -15,6 +15,7 @@
           # base_url is non-null.
           models: models.py
           admin: admin.py
+          django_library: vtnnetport.py
           admin_template: templates/vtnadmin.html
           synchronizer: synchronizer/manifest
           synchronizer_run: vtn-synchronizer.py
diff --git a/xos/vtnnetport.py b/xos/vtnnetport.py
new file mode 100644
index 0000000..be092c0
--- /dev/null
+++ b/xos/vtnnetport.py
@@ -0,0 +1,171 @@
+from core.models import *
+from services.vtn.models import VTNService
+
+VTN_SERVCOMP_KINDS=["PRIVATE","VSG"]
+
+class VTNNetwork(object):
+    def __init__(self, xos_network=None):
+        self.xos_network = xos_network
+
+    def get_controller_network(self):
+        for cn in self.xos_network.controllernetworks.all():
+            # TODO: find the right one
+            return cn
+        return None
+
+    def get_cn_field(self, fieldname):
+        cn=self.get_controller_network()
+        if not cn:
+            return None
+        return getattr(cn, fieldname)
+
+    @property
+    def id(self):
+        return self.get_cn_field("net_id")
+
+    @property
+    def name(self):
+        return self.xos_network.name
+
+    @property
+    def subnet(self):
+        return self.get_cn_field("subnet")
+
+    @property
+    def gateway(self):
+        return self.get_cn_field("gateway")
+
+    @property
+    def segmentation_id(self):
+        return self.get_cn_field("segmentation_id")
+
+    @property
+    def type(self):
+        return self.xos_network.template.vtn_kind
+
+    @property
+    def providerNetworks(self):
+        slice = self.xos_network.owner
+        service = slice.service
+        if not service:
+            return []
+
+        nets=[]
+        for tenant in service.subscribed_tenants.all():
+            if tenant.provider_service:
+                bidirectional = tenant.connect_method!="private-unidirectional"
+                for slice in tenant.provider_service.slices.all():
+                    for net in slice.networks.all():
+                        if net.template.vtn_kind not in VTN_SERVCOMP_KINDS:
+                            continue
+
+                        if not net.controllernetworks.exists():
+                            continue
+
+                        cn = net.controllernetworks.all()[0]
+                        nets.append({"id": cn.net_id,
+                                     "name": net.name,
+                                     "bidirectional": bidirectional})
+        return nets
+
+    @property
+    def subscriberNetworks(self):
+        slice = self.xos_network.owner
+        service = slice.service
+        if not service:
+            return []
+
+        nets=[]
+        for tenant in service.provided_tenants.all():
+            if tenant.subscriber_service:
+                bidirectional = tenant.connect_method!="private-unidirectional"
+                for slice in tenant.subscriber_service.slices.all():
+                    for net in slice.networks.all():
+                        if net.template.vtn_kind not in VTN_SERVCOMP_KINDS:
+                            continue
+
+                        if not net.controllernetworks.exists():
+                            continue
+
+                        cn = net.controllernetworks.all()[0]
+                        nets.append({"id": cn.net_id,
+                                     "name": net.name,
+                                     "bidirectional": bidirectional})
+        return nets
+
+    @property
+    def ownerSliceName(self):
+        if self.xos_network.owner:
+            return self.xos_network.owner.name
+        return None
+
+    @property
+    def ownerServiceName(self):
+        if self.xos_network.owner and self.xos_network.owner.service:
+            return self.xos_network.owner.service.name
+        return None
+
+class VTNPort(object):
+    def __init__(self, xos_port=None):
+        self.xos_port = xos_port
+
+    def get_controller_network(self):
+        for cn in self.xos_port.network.controllernetworks.all():
+            # TODO: find the right one
+            return cn
+        return None
+
+    def get_vsg_tenant(self):
+        from services.vsg.models import VSGTenant
+        for tenant in VSGTenant.get_tenant_objects().all():
+            if tenant.instance == self.xos_port.instance:
+                return tenant
+        return None
+
+    @property
+    def vlan_id(self):
+        if not self.xos_port.instance:
+            return None
+        tags = Tag.select_by_content_object(self.xos_port.instance).filter(name="s_tag")
+        if not tags:
+            return None
+        return tags[0].value
+
+    @property
+    def floating_address_pairs(self):
+        address_pairs = []
+        vsg = self.get_vsg_tenant()
+        if vsg:
+            if vsg.wan_container_ip and vsg.wan_container_mac:
+                address_pairs.append({"ip_address": vsg.wan_container_ip,
+                                      "mac_address": vsg.wan_container_mac})
+
+            if vsg.wan_vm_ip and vsg.wan_vm_mac:
+                address_pairs.append({"ip_address": vsg.wan_vm_ip,
+                                      "mac_address": vsg.wan_vm_mac})
+
+        return address_pairs
+
+    @property
+    def id(self):
+        return self.xos_port.port_id
+
+    @property
+    def name(self):
+        return "port-%s" % self.xos_port.id
+
+    @property
+    def network_id(self):
+        cn = self.get_controller_network()
+        if not cn:
+            return None
+        return cn.net_id
+
+    @property
+    def mac_address(self):
+        return self.xos_port.mac
+
+    @property
+    def ip_address(self):
+        return self.xos_port.ip
+