Feature 5651: support of MAC address specification in VNFD

Change-Id: I36dd97e41af67be6f28a2f9594910dcfde3ea356
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/models/yang/vnfd-base.yang b/models/yang/vnfd-base.yang
index 607a76c..5e8d018 100644
--- a/models/yang/vnfd-base.yang
+++ b/models/yang/vnfd-base.yang
@@ -464,6 +464,17 @@
             default "EXTERNAL";
           }
 
+          leaf mac-address {
+            description
+                "MAC address of the interface.
+                Some VNFs require a specific MAC address to be configured
+                in the interface. While this is not recommended at all in
+                NFV environments, this parameter exists to allow those
+                scenarios.
+                This parameter will be likely deprecated in the future.";
+            type string;
+          }
+
           choice connection-point-type {
             case internal {
               leaf internal-connection-point-ref {