Changes between Version 15 and Version 16 of Documentation/CGettingStarted


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Timestamp:
10/25/05 21:44:45 (14 years ago)
Author:
faiyaz
Comment:

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  • Documentation/CGettingStarted

    v15 v16  
    1313== Reservation ==
    1414
    15 As this is a wireless testbed, it is difficult to run multiple experiments without interference. Therefore, we currently only support one experiment at a time on the grids. In Orbit speak, a grid is a set of nodes on which to run experiments. In the present setup, the testbed consists of a 20*20 grid of nodes, and an array of sandboxes (1*2 grids).
     15As this is a wireless testbed, it is difficult to run multiple experiments without interference. Therefore, we currently only support one experiment at a time on the grids. In Orbit speak, a grid is a set of nodes on which can be used to run experiments. In the present setup, the testbed consists of a 20*20 grid of nodes, and an array of sandboxes (1*2 node grids).
    1616
    1717There are multiple [wiki:SandBoxes sandboxes] (2 nodes) available, which are development and test environments intended to reduce the time experimenters need on the main grid. Ideally, experimenters develop their software (application programs, routing protocols, measurement instrumentation, etc.) on offsite machines and then use the sandboxes for integration with the orbit environment and orbit software infrastructure. Once the experiment runs successfully in the sandbox environment, it can be moved to the main grid with few modifications.
     
    2323== Running the Experiment ==
    2424
    25 During your approved time slot, you will be able to log into the console of the respective grid. A console is a dedicated machine that allows access to all resources on that grid.
     25During 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.
    2626
    27 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]. From there you then can log into the console corresponding to the following table:
     27Currently, 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 slot, you can then log into the console corresponding to the following table:
    2828
    2929||Main grid (400 nodes)|| console.grid.orbit-lab.org ||
     
    3535
    3636
    37 When you are 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.
     37When 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.
    3838
    3939The experiment can be started with: