Addition of common model.

Change-Id: If5fd6bae01a59ebf9d27f8369ac3403c83f70fad
diff --git a/models/common/src/main/yang/ietf-snmp@2014-12-10.yang b/models/common/src/main/yang/ietf-snmp@2014-12-10.yang
new file mode 100644
index 0000000..60237a6
--- /dev/null
+++ b/models/common/src/main/yang/ietf-snmp@2014-12-10.yang
@@ -0,0 +1,82 @@
+module ietf-snmp {
+
+  namespace "urn:ietf:params:xml:ns:yang:ietf-snmp";
+  prefix snmp;
+
+  include ietf-snmp-common {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-engine {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-target {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-notification {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-proxy {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-community {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-usm {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-tsm {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-vacm {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-tls {
+    revision-date 2014-12-10;
+  }
+  include ietf-snmp-ssh {
+    revision-date 2014-12-10;
+  }
+
+  organization
+    "IETF NETMOD (NETCONF Data Modeling Language) Working Group";
+
+  contact
+    "WG Web:   <http://tools.ietf.org/wg/netmod/>
+     WG List:  <mailto:netmod@ietf.org>
+
+     WG Chair: Thomas Nadeau
+               <mailto:tnadeau@lucidvision.com>
+
+     WG Chair: Juergen Schoenwaelder
+               <mailto:j.schoenwaelder@jacobs-university.de>
+
+     Editor:   Martin Bjorklund
+               <mailto:mbj@tail-f.com>
+
+     Editor:   Juergen Schoenwaelder
+               <mailto:j.schoenwaelder@jacobs-university.de>";
+  description
+    "This module contains a collection of YANG definitions for
+     configuring SNMP engines.
+
+     Copyright (c) 2014 IETF Trust and the persons identified as
+     authors of the code.  All rights reserved.
+
+     Redistribution and use in source and binary forms, with or
+     without modification, is permitted pursuant to, and subject
+     to the license terms contained in, the Simplified BSD License
+     set forth in Section 4.c of the IETF Trust's Legal Provisions
+     Relating to IETF Documents
+     (http://trustee.ietf.org/license-info).
+
+     This version of this YANG module is part of RFC 7407; see
+     the RFC itself for full legal notices.";
+
+  revision 2014-12-10 {
+    description
+      "Initial revision.";
+    reference
+      "RFC 7407: A YANG Data Model for SNMP Configuration";
+  }
+
+}