[wiki:WikiStart Orbit] > HowToGetStarted = How to get started = First, you need an account. Please check the UsagePolicy if you are eligible. In order to get an account please [http://www.orbit-lab.org/register register here]. A typical experiment requires the following three steps: * [wiki:ReservationTutorial Reservation] * Running the experiment * [wiki:Tutorial/AnalyzeResults Analyzing the results] == Running the Experiment == During your approved time slot, you will be able to ssh into the console of the respective grid. A console is a dedicated machine that allows access to all resources on that grid. Currently, this requires a two step process. * You first need to log into '''gateway.orbit-lab.org''' with your Orbit credentials using [http://www.openssh.com/ SSH]. * '''During your approved time slot''', you can then log into the '''console''' corresponding to the following table using SSH: ||Main grid (400 nodes)|| console.grid.orbit-lab.org || ||Sandbox 1 (2 nodes)|| console.sb1.orbit-lab.org || ||Sandbox 2 (2 nodes)|| console.sb2.orbit-lab.org || ||Sandbox 5 (2 nodes)|| console.sb5.orbit-lab.org || ||Sandbox 6 (2 nodes)|| console.sb6.orbit-lab.org || ||Sandbox 9 (64 nodes)|| console.sb9.orbit-lab.org || For e.g to access the smaller grid (64 nodes), {{{ yourhost>ssh username@gateway.orbit-lab.org gateway> ssh username@console.sb9.orbit-lab.org }}} When you have successfully logged in, you can start an experiment using the [wiki:NodeHandler nodehandler]. First time users are '''highly''' encouraged to reserve time on a sandbox instead of the main grid, and start with the built-in ''Hello World'' experiment. This experiment will send UDP datagrams of 1024 bytes from node 1-1 to node 1-2 at 300 kbps CBR traffic. Both, sender and receiver, report measurements to a database, using our [wiki:OML OML] measurement framework. The experiment can be started with: {{{ user#> nodehandler -t }}} More information on writing experiment scripts can be found in the [wiki:Tutorial Tutorial]. == Analyzing Results == Orbit provides a sophisticated framework to efficiently collect measurements at runtime into a database. This database is accessible to the experimenter during the experiment from the console. At the end of an experiment, the database is copied to an external machine and is accessible without a reservation. More information can be found [wiki:OML here]. = Where to go from here = If you are still unsure what Orbit is, please read the [wiki:FAQ FAQ] and the [wiki:Tutorial Tutorial], otherwise go ahead and [http://www.orbit-lab.org/register register].