Version 79 (modified by nilanjan, 3 years ago) (diff)

ORBIT Tutorials

0. Getting Started

Before you can complete any of the tutorials, you will need to have followed these prerequisites:

  1. Make a reservation

    Wiki page "Documentation/Scheduler" does not exist

  2. Login into reserved domain

    Login into reserved domain

    During your approved time slot, you will be able to ssh into the console of the respective domain. A console is a dedicated machine that allows access to all resources in that domain.

    For example, to access the sandbox1:

    Using username "username".
    Authenticating with public key "xxxxxxxxx"
    Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-36-generic x86_64)
     * Documentation:
      System information as of Mon Jan 28 20:25:50 EST 2013
      System load:  0.0               Processes:           93
      Usage of /:   2.7% of 69.43GB   Users logged in:     0
      Memory usage: 6%                IP address for eth0:
      Swap usage:   0%                IP address for eth1:
      Graph this data and manage this system at
    9 packages can be updated.
    0 updates are security updates.
    |                 *** For authorized use only ***                 |
    | This system is for the use of authorized users only.  All users |
    | are expected to comply with the "Acceptable Use Policy" availa- |
    | ble at                        |
    | Individuals using this computer system, are subject to having   |
    | all of their activities on this system monitored and recorded   |
    | by system personnel.                                            |
    |                                                                 |
    | Anyone using this system expressly consents to such monitoring  |
    | and is advised that if such monitoring reveals possible         |
    | evidence of criminal activity, system personnel may provide the |
    | evidence of such monitoring to law enforcement officials.       |
    |                                                                 |
    | Email question, comments or problems to      |
  3. Check the status

    omf stat

    This omf command is used to display the power status of the node/domain.

    Usage: omf help stat

    username@consoles.outdoor:omf-5.4 help stat
    Returns the status of the nodes in a testbed
          omf-5.4 stat [-h] [-s] [-t TOPOLOGY] [-c AGGREGATE]
          -h, --help                print this help message
          -s, --summary             print a summary of the node status for the testbed
          -c, --config AGGREGATE    use testbed AGGREGATE
          -t, --topology TOPOLOGY   a valid topology file or description (defaults to 'system:topo:all')
          Some Examples: 
                        omf-5.4 stat
                        omf-5.4 stat -s
                        omf-5.4 stat -t omf.nicta.node1,omf.nicta.node2 -c sb1
                        omf-5.4 stat -t system:topo:all -c grid

    Individual nodes are identified in the output of stat command by their fully qualified domain name (FQDN). This establishes their "coordinates" and the "domain" to which they belong. Nodes in different domains typically can NOT see each other. Node can be in 1 of 3 states:

    POWEROFF Node is Available for use but turned off
    POWERON Node is Available and is on
    NOT REGISTERED Node is not Available for use

    Example: omf stat on the outdoor domain

    user@console.outdoor:~# omf stat
     INFO NodeHandler: OMF Experiment Controller 5.4 (git 6d34264)
     INFO NodeHandler: Slice ID: default_slice (default)
     INFO NodeHandler: Experiment ID: default_slice-2012-10-14t14.42.15-04.00
     INFO NodeHandler: Message authentication is disabled
     INFO Experiment: load system:exp:stdlib
     INFO property.resetDelay: value = 210 (Fixnum)
     INFO property.resetTries: value = 1 (Fixnum)
     INFO Experiment: load system:exp:eventlib
     INFO Experiment: load system:exp:stat
     INFO Topology: Loading topology ''.
     INFO property.nodes: value = "system:topo:all" (String)
     INFO property.summary: value = false (FalseClass)
     INFO Topology: Loading topology 'system:topo:all'.
     Talking to the CMC service, please wait
     Node:   	 State: NOT REGISTERED
     Node:   	 State: POWEROFF
     Node:    State: POWEROFF
     Node:    State: POWEROFF
     Node:   	 State: POWERON
     Node:   	 State: POWERON
     Node:   	 State: POWEROFF
     Node:   	 State: POWEROFF
     Node:   	 State: POWERON
     Node:   	 State: POWEROFF
     Node:   	 State: NOT REGISTERED
     Node:   	 State: POWERON
     INFO Experiment: Switching ON resources which are OFF
     INFO EXPERIMENT_DONE: Event triggered. Starting the associated tasks.
     INFO NodeHandler: 
     INFO NodeHandler: Shutting down experiment, please wait...
     INFO NodeHandler: 
     INFO run: Experiment default_slice-2012-10-14t14.42.15-04.00 finished after 0:6

1. Basic Tutorial

1.1 Tutorials on controlling the testbed nodes

1.2 Introductory Experiments

This section gives an introduction to the ORBIT testbed, its capabilities and its operations. It also presents the basic knowledge required to write and execute experiments for the testbed.

If you are new to the ORBIT testbeds, reading and running the tutorial in this section should help you getting started.

The first part of this tutorial briefly describes the ORBIT Testbed, its system architecture and its hardware and software components. The second part presents and describes a simple "Hello World" experiment with one sender and one receiver. The third and concluding part covers the collection an interpretation of measurements and results of an experiments on the ORBIT testbed.

2. Additional refrences

After completing the above basic tutorial, you should have a better understanding of using the ORBIT testbed to experiment your ideas, algorithms, or protocols. The tutorials in this second section further explore the various ORBIT functions that will help you write and execute more advanced experiments.

Finally, some more detailed information and references can be found on the Documentation page

Gnu Radio

More documentation on the GNURadio can be found here?

WiMAX Reference

The WiMAX resource center can be found at

Further Documentation

The OMF project has further documentation at