OpenConfig model for Infinera XT3300

Change-Id: I400c9146892932afc97d1a32e425722fd7c92345
diff --git a/models/openconfig-infinera/src/main/yang/openconfig-extensions@2015-10-09.yang b/models/openconfig-infinera/src/main/yang/openconfig-extensions@2015-10-09.yang
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+++ b/models/openconfig-infinera/src/main/yang/openconfig-extensions@2015-10-09.yang
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+module openconfig-extensions {
+
+  yang-version "1";
+
+  // namespace
+  namespace "http://openconfig.net/yang/openconfig-ext";
+
+  prefix "ocext";
+
+  // meta
+  organization "OpenConfig working group";
+
+  contact
+    "OpenConfig working group
+    www.openconfig.net";
+
+  description
+    "This module provides extensions to the YANG language to allow
+    OpenConfig specific functionality and meta-data to be defined.";
+
+  revision "2015-10-09" {
+    description
+      "Initial OpenConfig public release";
+  }
+
+  revision "2015-10-05" {
+    description
+      "Initial revision";
+    reference "TBD";
+  }
+
+  // extension statements
+  extension openconfig-version {
+    argument "semver" {
+      yin-element false;
+    }
+    description
+      "The OpenConfig version number for the module. This is
+      expressed as a semantic version number of the form:
+        x.y.z
+      where:
+        * x corresponds to the major version,
+        * y corresponds to a minor version,
+        * z corresponds to a patch version.
+      This version corresponds to the model file within which it is
+      defined, and does not cover the whole set of OpenConfig models.
+      Where several modules are used to build up a single block of
+      functionality, the same module version is specified across each
+      file that makes up the module.
+      A major version number of 0 indicates that this model is still
+      in development (whether within OpenConfig or with industry
+      partners), and is potentially subject to change.
+      Following a release of major version 1, all modules will
+      increment major revision number where backwards incompatible
+      changes to the model are made.
+      The minor version is changed when features are added to the
+      model that do not impact current clients use of the model.
+      The patch-level version is incremented when non-feature changes
+      (such as bugfixes or clarifications to human-readable
+      descriptions that do not impact model functionality) are made
+      that maintain backwards compatibility.
+      The version number is stored in the module meta-data.";
+  }
+}