Changes between Version 44 and Version 45 of GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup


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Timestamp:
08/22/14 14:32:38 (5 years ago)
Author:
sedwards@bbn.com
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  • GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup

    v44 v45  
    264264== d. Automate `OSPF` Configuration ==
    265265
    266 By understanding the syntax of the `OSPF` configuration file for `XORP`, we are able to automate the `OSPF` configuration for every virtual router in a topology, assuming these virtual routers are identical. You can download the automation scripts from [http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz XORPAutoStart].
     266By understanding the syntax of the `OSPF` configuration file for `XORP`, we are able to automate the `OSPF` configuration for every virtual router in a topology, assuming these virtual routers are identical. You can download the automation scripts from [http://www.gpolab.bbn.com/exp/sysexpr/xorp_autostart.tar.gz XORPAutoStart].
    267267
    268268=== i. Test the Automation ===
     
    277277Last login: Mon Jun 30 14:56:51 2014 from 128.89.69.127
    278278xuanliu@router-3:~$ cd /local
    279 xuanliu@router-3:/local$ sudo wget http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz
     279xuanliu@router-3:/local$ sudo wget http://www.gpolab.bbn.com/exp/sysexpr/xorp_autostart.tar.gz
    280280xuanliu@router-3:/local$ sudo tar -zxvf xorp_autostart.tar.gz
    281281xuanliu@router-3:/local/xorp_autostart$ /bin/bash start-xorp.sh
     
    352352[[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:import-rspec-from-file.png)]]
    353353
    354 Now, we are ready to add an install script by editing the node property. For each node, click [[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:info.jpg)]] to see the node information. By clicking [[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:add-service-btn.png)]], we are able to add a service that usually refers to an install script. In this tutorial, we will add an install script called `xorp_autostart.tar.gz`, by entering the link ''http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz'', and the install path is set as ''/local''. By clicking [[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:add-exe-serv-btn.png)]], we can add the commend that execute the install script. In the execute box, we enter `/bin/bash /local/xorp_autostart/start-xorp.sh`, and the shell type is `sh`.
     354Now, we are ready to add an install script by editing the node property. For each node, click [[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:info.jpg)]] to see the node information. By clicking [[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:add-service-btn.png)]], we are able to add a service that usually refers to an install script. In this tutorial, we will add an install script called `xorp_autostart.tar.gz`, by entering the link ''http://www.gpolab.bbn.com/exp/sysexpr/xorp_autostart.tar.gz'', and the install path is set as ''/local''. By clicking [[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:add-exe-serv-btn.png)]], we can add the commend that execute the install script. In the execute box, we enter `/bin/bash /local/xorp_autostart/start-xorp.sh`, and the shell type is `sh`.
    355355
    356356[[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:node-install-service.png)]]
     
    397397   <services>
    398398      <execute command="/bin/bash /local/xorp_autostart/start-xorp.sh" shell="sh"/>
    399       <install install_path="/local" url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz"/>
     399      <install install_path="/local" url="http://www.gpolab.bbn.com/exp/sysexpr/xorp_autostart.tar.gz"/>
    400400   </services>
    401401}}}
     
    409409
    410410
    411 In this tutorial, one metric we would like to evaluate is how often the routing table will be updated when there is a link/node failure. To emulate a link failure, we can disable the virtual interfaces, and to emulate a virtual router failure, we can stop the XORP process at the virtual router. A short script (downloaded from [http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_run.tar.gz here] is available to be loaded as an install script.
     411In this tutorial, one metric we would like to evaluate is how often the routing table will be updated when there is a link/node failure. To emulate a link failure, we can disable the virtual interfaces, and to emulate a virtual router failure, we can stop the XORP process at the virtual router. A short script (downloaded from [http://www.gpolab.bbn.com/exp/sysexpr/xorp_run.tar.gz here] is available to be loaded as an install script.
    412412
    413413Delete any existing resources or create a new slice, '''LOAD''' the RSpec `4node-v2.rspec`, and add a new install service to every node in Flack. Now, the service portion for each node becomes to
     
    415415    <services>
    416416      <execute command="/bin/bash /local/xorp_autostart/start-xorp.sh" shell="sh"/>
    417       <install install_path="/local" url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz"/>
    418       <install install_path="/local" url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_run.tar.gz"/>
     417      <install install_path="/local" url="http://www.gpolab.bbn.com/exp/sysexpr/xorp_autostart.tar.gz"/>
     418      <install install_path="/local" url="http://www.gpolab.bbn.com/exp/sysexpr/xorp_run.tar.gz"/>
    419419    </services>
    420420}}}
     
    445445
    446446
    447 Or, we can also write a script to install `iperf` to the client and server, load it as an install script by following the same steps as we just did for XORP. The install scripts for client and server can be downloaded from [http://geni-myvini.umkc.gpeni.net/resources/experiments/install_script.tar.gz here]. An sample RSpec with iperf install script and execute command can be downloaded at [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/4node-v4.rspec `4node-v4.rspec`].
     447Or, we can also write a script to install `iperf` to the client and server, load it as an install script by following the same steps as we just did for XORP. The install scripts for client and server can be downloaded from [http://www.gpolab.bbn.com/exp/sysexpr/install_script.tar.gz here]. An sample RSpec with iperf install script and execute command can be downloaded at [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/4node-v4.rspec `4node-v4.rspec`].
    448448
    449449[[Image(GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup:4node-add-endhosts.png)]]