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Date: Tue, 13 Jul 2010 13:51:45 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: [Qemu-devel] Re: [PATCH 0/8] vlan cleanup
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To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Markus Armbruster <armbru@redhat.com>, Luiz Capitulino <lcapitulino@redhat.com>, Miguel Di Ciurcio Filho <miguel.filho@gmail.com>, qemu-devel@nongnu.org, avi@redhat.com

On 07/13/2010 07:48 AM, Jan Kiszka wrote:
> Miguel Di Ciurcio Filho wrote:
>    
>> On Tue, Jul 13, 2010 at 3:16 AM, Jan Kiszka<jan.kiszka@web.de>  wrote:
>>      
>>> Miguel Di Ciurcio Filho wrote:
>>>        
>>>> This series removes the vlan stuff without mercy. I've tried to make the steps
>>>> as small as possible, but the last one is huge. I did some basic tests and
>>>> networking is still working, so reviews are welcome :-D
>>>>          
>>> Sorry, this is a bit too rude. This not only removes the vlan model,
>>> something one may talk about, but also the innocent socket back-ends and
>>> the useful pcap dump support.
>>>
>>> Socket back-ends allow quick and easy unprivileged inter-VM network
>>> setups. Nothing for production systems, but useful for testing purposes
>>> on boxes where taps are not allowed or unhandy to configure.
>>>
>>>        
>> I agree that it might be handy sometimes, but one could use VDE for
>> that too. Runs on user-space and can be tunneled over SSH or netcat
>> [1].
>>      
> Yes, I know. But it requires yet another process as hop. In contrast,
> peer-to-peer sockets used to be as fast as taps in certain setup (now
> taps became faster again).
>    

Dump is critical to maintain.

sockets is not terribly useful without vlan.  Honestly, I have a hard 
time agreeing that it's terribly useful to begin with.  I don't buy an 
argument about "ease-of-use" because how to properly configure the 
sockets backend is not at all obvious.

Regards,

Anthony Liguori