[Qemu-devel] Re: [PATCH 0/8] vlan cleanup

[Anthony Liguori]

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<address@hidden>  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