faq/Using-the-Testbed/Emulab-Classic.md

 The old Emulab interface (which we affectionately refer to as *Emulab Classic*) has been deprecated for a while, we are no longer doing any active development on it. If possible, you should consider switching over to the new [Portal](https://www.emulab.net/portal) interface which is complete redesign of the web interface and experiment workflow model.
-The most important feature of the new Portal interface, is that **NS** is no longer used as the specification language for experiments. Instead, we now use Python to describe experiments. Lots of information and a tutorial can be found in the new [Emulab Documentation](http://docs.emulab.net).
+The most important feature of the new Portal interface, is that **NS** is no longer used as the specification language for experiments. Instead, we now use Python to describe experiments. 
 
-The new documentation includes a detailed section on how to [convert your NS experiments to Python](http://docs.emulab.net/emulab-transition.html) after switching over to the Portal web interface. 
+For more details about transitioning from the old, Classic web interface to the new Emulab portal, see: [http://docs.emulab.net/emulab-transition.html](http://docs.emulab.net/emulab-transition.html). Lots of other information and a tutorial can be found in the new [Emulab Documentation](http://docs.emulab.net).
+
+### PROFILES
+
+In comparison to the old, "classic" Emulab UI, the Emulab portal has
+a streamlined, modern web GUI.  More significantly, the portal is
+organized around *profiles*, which are similar to, but different than,
+classic Emulab experiments.  Profiles:
+
+ * are written in a domain-specific language atop Python (no more NS/Tcl!)
+ * can be created and edited with a web-based GUI
+ * are versioned
+ * can have parameters, settable at swap-in time
+ * can have metadata, including embedded instructions
+ * can potentially be instantiated on other testbeds, like CloudLab
+ * can be based on Git repositories
+ * can be published to the world
+
+To learn about the portal UI, profiles, and the "geni-lib" DSL, please
+consult the online documentation:
+
+ * [http://docs.emulab.net/getting-started.html](http://docs.emulab.net/getting-started.html)
+ * [http://docs.emulab.net/creating-profiles.html](http://docs.emulab.net/creating-profiles.html)
+ * [http://docs.emulab.net/geni-lib.html](http://docs.emulab.net/geni-lib.html)
+
+### CLASSIC EXPERIMENTS
+
+The Emulab portal can create profiles from Classic Emulab experiments,
+automatically converting NS files into geni-lib scripts.  Within the
+classic Emulab interface, navigate to one of your experiments and select
+"Create Profile from Experiment" from the left-hand menu.  In the portal,
+you will also see icons that provide a "shortcut" to the converter.
+
+The converter covers the most commonly used features of NS.  If you find
+a missing feature, or have an experiment that cannot convert, please let
+us know.  We are especially interested in feedback about the converter!
+
+### RESERVATIONS
+
+One of the cool new features of the portal UI is reservations.  A project
+can reserve a set of nodes for some time in the future, and when the time
+comes, the project can use those nodes to run one or several experiments.
+Learn more about reservations here: 
+[http://docs.emulab.net/reservations.html](http://docs.emulab.net/reservations.html)
+
+MISSING FEATURES
+
+The primary features of NS-based experiments that are *not* currently
+available in geni-lib profiles relate to the event system.  The missing
+features include dynamic events ("event at time X"), event sequences,
+event timelines, and event groups.  These features are somewhat rarely
+used by most Emulab experimenters.  Please send us feedback if you would
+like support for these features and/or help with possible workarounds.
 
 If for some reason you are unwilling or unable to use the new Portal interface, the [Emulab Classic](https://www.emulab.net/classic.html) interface will be available for a while longer.
\ No newline at end of file