ExoGENI/GIMI Tutorial

Design/Setup

In this part of the tutorial we give a brief overview on the experiment workflow. GIMI is providing experimenters with a set of tools that will aid them in allocating GENI resources, executing experiments, and performing measurements while these experiments are running. In addition, the GIMI tools will allow experimenters to analyze and visualize measurement data. Finally, a federated set of iRODS servers provides an archival service.
The figure below illustrate what we describe as the experiment workflow. During the tutorial we will walk through the single steps of this workflow with the goal to have experimenters apply this workflow to their own experiments.

Topology

The image below illustrates the ExoGENI topology that we will create within the scope of this tutorial. The experiment described above will be executed on the basis of this topology.

In Section 1.Reserving Resources, we will go through the process of setting up and obtaining a slice that represents this topology.

The routing in this topology is set up as follows:

Origin Node	Destination Net	Via IP	Node
A	192.168.1.0/24	192.168.4.10	B
	192.168.2.0/24	192.168.4.10	B
	192.168.3.0/24	192.168.5.12	C
	192.168.4.0/24	192.168.4.11	A
	192.168.5.0/24	192.168.5.11	A
	192.168.6.0/24	192.168.5.12	C
B	192.168.1.0/24	192.168.1.10	B
	192.168.2.0/24	192.168.2.10	B
	192.168.3.0/24	192.168.1.13	D
	192.168.4.0/24	192.168.4.10	B
	192.168.5.0/24	192.168.4.11	A
	192.168.6.0/24	192.168.2.12	C
C	192.168.1.0/24	192.168.3.13	D
	192.168.2.0/24	192.168.2.12	C
	192.168.3.0/24	192.168.3.12	C
	192.168.4.0/24	192.168.5.11	A
	192.168.5.0/24	192.168.5.12	C
	192.168.6.0/24	192.168.6.12	C
D	192.168.1.0/24	192.168.1.13	D
	192.168.2.0/24	192.168.3.12	C
	192.168.3.0/24	192.168.3.13	D
	192.168.4.0/24	192.168.1.10	B
	192.168.5.0/24	192.168.3.12	C
	192.168.6.0/24	192.168.3.12	C
E	192.168.1.0/24	192.168.6.12	C
	192.168.2.0/24	192.168.6.12	C
	192.168.3.0/24	192.168.6.12	C
	192.168.4.0/24	192.168.6.12	C
	192.168.5.0/24	192.168.6.12	C
	192.168.6.0/24	192.168.6.14	E

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1. Reserve Resources

1.1 Login to the GENI Portal

​GENI Portal

1.2 Select Project and Create Slice

Create Slice

Create a slice in the Project GEC18. Give the slice a unique name. Preferably something with your username in it. e.g dbhatlabwiki

1.3 Click on Add Resources and select RSpec

Select RSpec from drop down list under Add Resources.

For this tutorial we already have an RSpec created for you. Here, select GIMIgec18.
You can also upload your own RSpec.

Here you will need to select the ExoGENI racks assigned to you for the tutorial. This assignment is only done so that we can distribute VMs across different ExoGENI racks. Outside of this tutorial, you can use any of the following racks:

Click on Reserve Resources

1.4 Query for resources

Click on your slice name at the top and click on Resource Status. Once you see a READY on your resources, your slice is ready for experiments. You can refresh the page until you see READY.

Wait until ready

iRODs

2. Configure iRODs

The iRODs or Integrated Rule-Oriented Datasystem is a directory structure used to archive all experiment related data such as scripts, manifest RSpecs, experiment results and so on.
Please click on this link to learn more about ​iRODs.

2.1 Create iRODs account

Login to your GENI Portal account and Click on the Profile tab on the top right corner of the page. Click on Tools.
At the bottom of the page, click on the Create iRODs button.

You will be redirected to another page with your iRODs Environment and also your temporary iRODs account password.

Important: Make sure you record your iRODS password. How to change your password is explained ​here.

2.2 Using iDrop

​iDrop is the Web-interface provided for you to view your iRODs directory structure and files. You can view, upload and download files through iDrop. For LabWiki experiments, iDrop will have all your measurement related data and experiment Scripts in your folders.

If you are ready to run the Experiment go to ​Next Step: Execute Experiment

​Next Step: Execute Experiment

​Back to Procedure