Changes between Version 6 and Version 7 of GENIExperimenter/Tutorials/GettingStarted_PartI/Procedure/Execute


Ignore:
Timestamp:
01/10/14 18:33:26 (6 years ago)
Author:
sedwards@bbn.com
Comment:

--

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  • GENIExperimenter/Tutorials/GettingStarted_PartI/Procedure/Execute

    v6 v7  
    9393</table>
    9494}}} 
    95     c. From the client, ping the server. From the terminal window that is logged in to the client type :
     95    c. From the client, `ping` the server '''data plane interface'''. From the terminal window that is logged in to the client type :
    9696{{{
    9797    ping <server data IP addr> -c 5
     
    11111164 bytes from 10.17.1.2: icmp_req=4 ttl=64 time=91.1 ms
    11211264 bytes from 10.17.1.2: icmp_req=5 ttl=64 time=91.2 ms
    113 
    114113--- 10.17.1.2 ping statistics ---
    1151145 packets transmitted, 5 received, 0% packet loss, time 4004ms
     
    117116}}}
    118117
    119 
    120 === 5.2 (optional) Send non-IP traffic ===
     118    d. Now run `traceroute` to the server data IP address:
     119{{{
     120    traceroute <server data IP addr>
     121}}}
     122
     123    e. From the client, now `ping` the server '''control plane interface''' and run `traceroute`. From the terminal window that is logged in to the client type :
     124{{{
     125    ping <server control IP addr> -c 5
     126    traceroute <server data IP addr>
     127}}}
     128
     129=== 5.2 Take down the data interface ===
    121130
    122131    a. ExoGENI nodes run a service called "neuca" that managed network interfaces on the node.  To manually adjust the IP address, we must first disable neuca on both nodes.
     
    165174    This time the ping should indicate that the destination is unreachable.
    166175
    167  
    168 
     176=== 5.3 (optional) Take down the control interface ===
     177    a. Now disable the IP on the control interface.
     178{{{
     179  sudo ifconfig <control interface name> 0.0.0.0
     180}}}
     181
     182Your ssh session should immediately hang. 
     183
     184Why?
     185
     186<table id="Table_03" border="0" cellpadding="5" cellspacing="0">
     187        <tr>
     188                <td>
     189                        <img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/Symbols-Tips-icon.png?format=raw" width="50" height="50" alt="Tip">
     190               </td>
     191               <td>
     192                    Unfortunately, in order to recover from a situation like this where you've lost the ability to login to your nodes, the only way to recover is to delete your resources and start again.
     193        </tr>
     194</table>
    169195
    170196== 6.  Analyze Experiment ==
     
    173199
    174200=== 6.1 Logout of your nodes ===
    175 
    176  * When you are done, CTRL-C in the server window to stop !PingPlusListener.
    177  * Then type `exit` in each of your open terminals.
     201 * Then type `exit` in your open terminal.
    178202
    179203Congratulations you have run an experiment in GENI!