Changes between Version 33 and Version 34 of GENIExperimenter/Tutorials/GettingStarted_PartII_ccn/Procedure/Execute/GEMINI


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Timestamp:
03/20/15 13:45:36 (5 years ago)
Author:
rrhain@bbn.com
Comment:

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  • GENIExperimenter/Tutorials/GettingStarted_PartII_ccn/Procedure/Execute/GEMINI

    v33 v34  
    117117=== 5.2.3 Visualizing your Experiment ===
    118118
    119 1. At this point you will see three graphs showing traffic on each of the three links on your experiment.  The traffic you see on the links is broadcast traffic from the switch on the rack to which these nodes connect.  It is not related to your experiment.
     119a. At this point you will see three graphs showing traffic on each of the three links on your experiment.  The traffic you see on the links is broadcast traffic from the switch on the rack to which these nodes connect.  It is not related to your experiment.
    120120
    121121{{{
     
    124124<tr>
    125125   <td>
    126    <ol type='a'>
     126   <ol>
    127127     <li> Go back to the ssh window you used to log into the researcher node when you did the CCN exercise.  </li>
    128128     <li> Use the <tt> /opt/ccnx-atmos/client.py </tt> program to fetch precipitation data for a time period you had not previously fetched.  This is to make sure the data will be fetched from the data source (<tt>dsrc1</tt>) and not from the cache at some node.  The time period must be between 1 Jan 1902 and 31 Jan 1902. </li>
     
    133133}}}
    134134
    135 2. Your graphs should now show traffic on the {{{rschr-router}}} and {{{router-dsrc1}}} links (see example below).  This is because the precipitation data was not cached anywhere and had to be fetched from the data source.
     135b. Your graphs should now show traffic on the {{{rschr-router}}} and {{{router-dsrc1}}} links (see example below).  This is because the precipitation data was not cached anywhere and had to be fetched from the data source.
    136136
    137137 [[Image(http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Images/GENIDesktop-CmpTraf.png?format=raw, nolink, 50%)]]
    138138
    139 3. Fetch the same data again.  Notice there is no experiment traffic on the links.  This is because the data was fetched from the cache on the node {{{rsrchr}}}.
     139c. Fetch the same data again.  Notice there is no experiment traffic on the links.  This is because the data was fetched from the cache on the node {{{rsrchr}}}.
    140140
    141 4. You can investigate the CCN application further:
     141d. You can investigate the CCN application further:
    142142    1. Log into the collaborator node ({{{collab}}}) to fetch data that was previously fetched by the researcher node ({{{rschr}}}).  Can you tell from where the data is fetched based on the graphs?
    143143    2. From the collaborator node fetch data that was not previously fetched by the researcher.  Where did the data come from this time?