add vlan_id to VOLTTenant tosca object
diff --git a/xos/tosca/custom_types/xos.m4 b/xos/tosca/custom_types/xos.m4
index 28df41e..629c378 100644
--- a/xos/tosca/custom_types/xos.m4
+++ b/xos/tosca/custom_types/xos.m4
@@ -139,6 +139,9 @@
         derived_from: tosca.nodes.Root
         properties:
             xos_base_tenant_props
+            vlan_id:
+                type: string
+                required: false
 
     tosca.nodes.User:
         derived_from: tosca.nodes.Root
diff --git a/xos/tosca/custom_types/xos.yaml b/xos/tosca/custom_types/xos.yaml
index 92f73f4..6611198 100644
--- a/xos/tosca/custom_types/xos.yaml
+++ b/xos/tosca/custom_types/xos.yaml
@@ -201,6 +201,9 @@
             service_specific_id:
                 type: string
                 required: false
+            vlan_id:
+                type: string
+                required: false
 
     tosca.nodes.User:
         derived_from: tosca.nodes.Root
diff --git a/xos/tosca/resources/VOLTTenant.py b/xos/tosca/resources/VOLTTenant.py
index 611bf23..f00b515 100644
--- a/xos/tosca/resources/VOLTTenant.py
+++ b/xos/tosca/resources/VOLTTenant.py
@@ -14,7 +14,7 @@
 class XOSVOLTTenant(XOSResource):
     provides = "tosca.nodes.VOLTTenant"
     xos_model = VOLTTenant
-    copyin_props = ["service_specific_id"]
+    copyin_props = ["service_specific_id", "vlan_id"]
     name_field = None
 
     def get_xos_args(self, throw_exception=True):
diff --git a/xos/tosca/samples/cord.yaml b/xos/tosca/samples/cord.yaml
index eaa536a..477be2f 100644
--- a/xos/tosca/samples/cord.yaml
+++ b/xos/tosca/samples/cord.yaml
@@ -125,6 +125,7 @@
         type: tosca.nodes.VOLTTenant
         properties:
             service_specific_id: 1234
+            vlan_id: 4321
         requirements:
             - provider_service:
                 node: service_volt