This page is obsolete, please refer to the Systematic Experimental Design page for a newer version using XORP router

Case Study from "Creating Repeatable Computer Science and Networking Experiments on Shared, Public Testbeds"

Reproduce the 4-router case study

  1. Reserve the 4-router topology:
    1. If you have a GENI account you can reserve the RSpec at any InstaGENI aggregate following these instructions.
      • In particular the 4-node, single aggregate topology is available via the portal as OSPF 4-node (InstaGENI). It should be possible to reserve it at any InstaGENI aggregate.
  2. Send traffic and bring interfaces and nodes up and down.

Reproduce scaled up and multi-site case study topologies

  1. Using the same instructions as above, reserve the 7-router topology at either a single aggregate or spread across three-aggregates
    • The 7-node, single aggregate topology is loaded in the portal as OSPF 7-node (InstaGENI)
    • The 7-node, three aggregate topology is loaded in the portal as OSPF 7-node 3-aggregate (InstaGENI)
  2. Send traffic and bring interfaces and nodes up and down as before.
    • The previous instructions were customized to the 4-node topology.
    • Use the actual IP address of the server node ( for the ping, traceroute, and both iperf commands.
    • When bringing down the router and it's interfaces, pick a router that appears in the path between client and server as shown by the traceroute command.
      • For example, if traceroute reports the path used as router-1 -> router-3 -> router-5 -> router-7 then consider bringing down interfaces on router-3.
      • Check that the interface that you are bringing down is on the four router path shown by traceroute.
      • For example, eth1 might have IP address which connects to router-2. So you would then bring down eth1 using ifconfig.
    • After you bring down router-3, the path shown by traceroute might look like router-1 -> router-2 -> router-4 -> router-7.

Step-by-Step: How to reconstruct the experiment artifacts

The following instructions assume you have a GENI account.

Step-by-step instructions to recreate each step of the case study is broken into three parts:

Other materials:

Last modified 7 years ago Last modified on 05/08/17 08:56:17

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