diff --git a/augments/common-augments.yang b/augments/common-augments.yang
index 50a16d0..bcb7d47 100644
--- a/augments/common-augments.yang
+++ b/augments/common-augments.yang
@@ -458,4 +458,52 @@
             type uint32;
         }
     }
-}
+
+    grouping virtual-interface {
+        container virtual-interface {
+            description
+              "Container for the virtual interface properties";
+
+            leaf type {
+                description
+                  "Specifies the type of virtual interface
+                   between VM and host.
+                   PARAVIRT        : Use the default paravirtualized interface for the VIM (virtio, vmxnet3, etc.).
+                   VIRTIO          : Deprecated! Use the traditional VIRTIO interface.
+                   PCI-PASSTHROUGH : Use PCI-PASSTHROUGH interface.
+                   SR-IOV          : Use SR-IOV interface.
+                   E1000           : Emulate E1000 interface.
+                   RTL8139         : Emulate RTL8139 interface.
+                   PCNET           : Emulate PCNET interface.
+                   OM-MGMT         : Deprecated! Use PARAVIRT instead and set the VNF management interface at vnfd:mgmt-interface:cp";
+
+                type enumeration {
+                    enum PARAVIRT;
+                    enum OM-MGMT;
+                    enum PCI-PASSTHROUGH;
+                    enum SR-IOV;
+                    enum VIRTIO;
+                    enum E1000;
+                    enum RTL8139;
+                    enum PCNET;
+                }
+                default "PARAVIRT";
+            }
+
+            leaf vpci {
+                description
+                  "Specifies the virtual PCI address. Expressed in
+                   the following format dddd:dd:dd.d. For example
+                   0000:00:12.0. This information can be used to
+                   pass as metadata during the VM creation.";
+                type string;
+            }
+
+            leaf bandwidth {
+                description
+                  "Aggregate bandwidth of the NIC.";
+                type uint64;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/augments/interface.yang b/augments/interface.yang
new file mode 100644
index 0000000..a33eed1
--- /dev/null
+++ b/augments/interface.yang
@@ -0,0 +1,58 @@
+/*
+  Copyright 2020 Whitestack LLC
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+module interface {
+    yang-version 1.1;
+    namespace "urn:etsi:osm:yang:augments:interface";
+    prefix "interface";
+
+    import etsi-nfv-vnfd {
+        prefix vnfd;
+    }
+
+    import common-augments {
+        prefix common;
+    }
+
+    grouping extended-interface {
+        description
+          "List of Interfaces (external and internal) for the VNF";
+
+        leaf position {
+            description
+              "Explicit Position of the interface within the list";
+            type uint32;
+        }
+
+        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;
+        }
+
+        uses common:virtual-interface;
+    }
+
+    augment "/vnfd:vnfd/vnfd:vdu/vnfd:int-cpd/vnfd:virtual-network-interface-requirement" {
+        uses extended-interface;
+    }
+}
\ No newline at end of file