Re: Dynamically add/change interfaces in Click config

Typically on Emulab-type testbeds, I do the following.  Make a generic 
click script.  Use perl or bash to determine which interfaces need to be 
used.  Then, use sed to create a click script for a particular node.

 FromDevice(NET_DEVICE) -> Discard;

sed -e 's/NET_DEVICE/eth12/' generic_script.click > custom_script.click

Roman


On Mon, 5 Dec 2011 13:42:22 -0500, Shrutarshi Basu wrote:
> Hi all,
> I'm trying to get Click running under the Mininet network
> virtualizer. Mininet creates veth interfaces when new switches/hosts
> are added to the network. However it seems that for Click
> configurations the interfaces have to be specified statically in the
> config file. Is there someway I can use a variable to represent the
> interfaces and then pass in the actual veth interfaces once Mininet
> has created them? I suppose one way would be to pass the config file
> through some sort of custom preprocessor that spits out a real config
> with the correct interfaces and then install that configuration. Is
> there some standard/alternative way of doing what I want?
> Thanks,
> Basu
>
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