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 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.
For more details about transitioning from the old, Classic web interface to the new Emulab portal, see: http://docs.emulab.net/emulab-transition.html. Lots of other information and a tutorial can be found in the new Emulab Documentation.
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:
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!
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
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 interface will be available for a while longer.