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+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+Monitoring using the GUI
+========================
+
+This section documents features built-in to the GUI for monitoring.
+
+.. _monitor_device_group:
+
+Monitoring a DeviceGroup
+------------------------
+
+The performance of a Device Group can be monitored in many ways, by clicking its |monitor| (**monitor**) icon:
+
+* From the *Slice Monitor* page, which shows all DeviceGroup's belonging to an Slice.
+* From the DeviceGroup List Page - click the |monitor| icon for the DeviceGroup.
+* When editing an existing DeviceGroup - in the Edit page, the |monitor| is next to the *id*
+
+The *monitor* page itself shows:
+
+* An information Panel for each *IMSI Range* in the *DeviceGroup*
+
+    * Each Device has a |monitor| button that allows further drill down
+    * Each Device is shown with its fully expanded IMSI number (a combination of *IMSI ID* and *Site* parameters)
+* An information panel for the *Site* and *IP Domain* of the *DeviceGroup*
+
+    * Clicking on the down arrow expands each panel
+
+.. image:: images/aether-roc-gui-devicegroup-monitor.png
+    :width: 600
+    :alt: DeviceGroup Monitor View with Device links and information panels
+
+The per Device Monitor panel contains:
+
+* a graph of the Device's Throughput and Latency over the last 15 minutes
+* a graph of the Device's connectivity over the last 15 minutes
+
+.. image:: images/aether-roc-gui-ue-monitor.png
+    :width: 600
+    :alt: DeviceGroup Monitor View with Device links and information panels
+
+Monitoring a Slice
+------------------
+
+The performance of a Slice can be monitored in many ways, by clicking its |monitor| (**monitor**) icon:
+
+* From the **Dashboard** page, which shows all Slice's belonging to an Enterprise.
+* From the Slice List Page - click the |monitor| icon for the Slice.
+* When editing an existing Slice - in the Edit page, the |monitor| is next to the *id*
+
+The *monitor* page itself shows:
+
+* A link to the Monitoring page of each Device Group. See :ref:`monitor_device_group`.
+* Information panels for each sub-object of the Slice
+
+    * Clicking on the down arrow expands each panel
+
+.. image:: images/aether-roc-vcs-monitor.png
+    :width: 920
+    :alt: Slice Monitor View with Connectivity and Performance Charts
+
+.. |monitor| image:: images/monitor-icon.png
+    :width: 28
+    :alt: Monitor icon