wiki:GENIExperimenter/Tutorials/StitchingTutorial/Execute

Version 11 (modified by lnevers@bbn.com, 8 years ago) (diff)

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GENI Inter-Aggregate Stitching Tutorial

Image Map

Step 4: Execute Experiment

To run the experiment we will use:

  • Two terminals to login to the "right-client" and the "left-client" VMs
  • One browser to connect to the "server" VM

But first we must determine which nodes have been allocated to our experiment.

1. Start 2 terminal windows and use the readyToLogin script to determine the login information for the "right-client" and "left-client".

$ readyToLogin -a rightAggr MySlice
....
$ ssh -i right-client....
...
$ readyToLogin -a leftAggr MySlice
...
$ ssh -i left-client....
...

For example in this tutorial we use:

$ readyToLogin -a stanford-ig MySlice
...
left-client's geni_status is: ready (am_status:ready) 
User lnevers logs in to left-client using:
	ssh -p 31802  -i /Users/lnevers/.ssh/geni_cert_portal_key lnevers@pc1.instageni.stanford.edu

server's geni_status is: ready (am_status:ready) 
User lnevers logs in to server using:
	ssh -i /Users/lnevers/.ssh/geni_cert_portal_key lnevers@pcvm1-15.instageni.stanford.edu

$ ssh -p 31802  -i /Users/lnevers/.ssh/geni_cert_portal_key lnevers@pc1.instageni.stanford.edu
Last login: Thu Mar 13 07:16:54 2014 from 128.89.73.116
[lnevers@left-client ~]$ 

2. Start a browser and navigate to the "server's"s hostname from step 2. For this example experiment the hostname allocated is pcvm1-15.instageni.stanford.edu:

3. In the first terminal logged in to "right-client", install iperf and send traffic to the server over the stitched path by executing the 2 commands exactly as shown:

right-client$ /usr/bin/iperf -c 10.10.1.2 -t 30 -P 10

4. In the second terminal connected to "left-client". install iperf and send traffic to the server over the local link by executing the 2 commands exactly as shown:

left-client$ /usr/bin/iperf -c 192.168.1.2 -t 30 -P 10

5. Now back in the browser: Refresh the web page and you should see the results from the iperf server.

Note: The interface capacity for all links was set to 20 Mbits/sec in the RSpec used for this tutorial.

The experiment is now completed; time to release resources!

Introduction

Finish