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+=========
+extension
+=========
+
+Many OpenStack server APIs include API extensions that enable
+additional functionality.
+
+extension list
+--------------
+
+List API extensions
+
+.. program:: extension list
+.. code:: bash
+
+    openstack extension list
+        [--compute]
+        [--identity]
+        [--network]
+        [--volume]
+        [--long]
+
+.. option:: --compute
+
+    List extensions for the Compute API
+
+.. option:: --identity
+
+    List extensions for the Identity API
+
+.. option:: --network
+
+    List extensions for the Network API
+
+.. option:: --volume
+
+    List extensions for the Block Storage API
+
+.. option:: --long
+
+    List additional fields in output
+
+extension show
+--------------
+
+Show API extension
+
+.. program:: extension show
+.. code:: bash
+
+    openstack extension show
+        <extension>
+
+.. _extension_show:
+.. describe:: <extension>
+
+   Extension to display. Currently, only network extensions are supported.
+   (Name or Alias)