[Click] Add headroom keyword to FromDevice?

[Michael Voorhaen]

I think that just about any packet generating element from 'Network  
Devices' and 'Host and Socket Communication' could benefit from this.  
While i'm not sure about this being possible for the linuxmodule, we  
could at least try to improve consistency across userlevel elements.

Regards,
Michael

-------------------------
IBBT - PATS research group
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On 09 Jul 2008, at 15:22, Giovanni Di Stasi wrote:

> Il Wednesday 09 July 2008 14:43:15 Bart Braem ha scritto:
>> Dear list,
>>
>> We noticed that FromHost has a very useful HEADROOM keyword to  
>> control
>> headroom added to new packets. Would it be useful to add the same to
>> FromDevice? In case of bridging or tunneling setups we think it would
>> be useful to be able to control HEADROOM in the script.
>> We will create a patch if other people like this feature as well.
>>
>> Regards,
>> Bart
>
> To the FromDevice? Yes, it would be a nice addition. But how about  
> adding this
> feature to the FromHost belonging to the LinuxModule?
>
> It could be useful when you want to add an extra header to avoid
> the "expensive pushes". However, I don't know if it is easy to make  
> this
> addition (maybe it is necessary to modify the linux kernel, in the  
> parts
> where packets are created).
>
>
> -- 
> Giovanni Di Stasi, Junior Researcher
> Dipartimento di Informatica e Sistemistica
> Università degli Studi di Napoli "Federico II"
> Via Claudio, 21 - 80125 Napoli - Italy
>
> Phone:    +39 081 7683821
> Fax:      +39 081 7683816
> E-mail:   giovanni.distasi at unina.it
>
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