Changes between Version 8 and Version 9 of GENIExperimenter/Tutorials/ClickExample/Execute


Ignore:
Timestamp:
03/17/13 02:58:48 (6 years ago)
Author:
nriga@bbn.com
Comment:

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  • GENIExperimenter/Tutorials/ClickExample/Execute

    v8 v9  
    258258Congratulations! You are now running a non-IP core network on your four routers, along with a (primitive) non-IP multipath routing algorithm. You're ready to experiment with this configuration.
    259259
    260 == 6. Send some traffic ==
     260== 2b. Send some traffic ==
    261261
    262262Now you'll use your two edge hosts, '''hostA''' and '''hostB''' to send traffic along your network.  Since these end hosts are not running your modified protocol, they'll rely on the '''top''' and '''bottom''' routers to transform their IP packets into your modified protocol on entry to the core network and back into IP packets on exit.
     
    274274That's it!  Now, let's look inside to see what's going on.
    275275
    276 == 7. Looking under the hood ==
     276== 2c. Looking under the hood ==
    277277
    278278Please note: the interface names and MAC addresses below are for the sample configuration shown in the figure above. You will want to refer to your network diagram to get the correct interfaces and addresses for your configuration.
     
    280280Let's take a look at what's happening in the four routers in your configuration. There are two basic router configurations. (You can find all of these files on any of your router hosts.)
    281281
    282 === 7b. Packet transformation ===
     282=== Packet transformation ===
    283283
    284284  i. The more interesting configuration appears here, in the '''top.click''' configuration file. In a local terminal type:
     
    330330  The configuration for the '''bottom''' router is exactly symmetric, routing packets between '''hostB''' and the core network, but using different graffiti.
    331331
    332 === 7b. Simple Forwarding ===
     332=== Simple Forwarding ===
    333333
    334334The '''left''' router configuration is much simpler.  In a local terminal type:
     
    357357This configuration just blindly forwards packets. It picks up any packet from the '''top''' router, updates the Ethernet header, and passes it along to the '''bottom''' router. The same applies in the reverse direction.  Again, the configuration for the '''right''' router is exactly analogous.
    358358
    359 === 7c. Monitoring your core network ===
     359=== Monitoring your core network ===
    360360
    361361Let's watch how the packets travel through the network.