[libvirt] [PATCH] Network: LXC generic ethernet interface

[Daniel P. Berrange]

On Mon, Sep 24, 2012 at 10:48:44AM +0900, Takayuki Usui wrote:
> The patch adds generic ethernet type to LXC, that allows you to make
> an arbitrary virtual network interface and associate it to an LXC
> domain. That does not, however, provide a means to execute a script,
> that is still available only for QEMU.
> 
>     1. Create a virtual ethernet device pair
> 
>         # ip link add type veth (e.g. veth0 and veth1 by default)
> 
>     2. Define a LXC domain and associate it to one end of the pair
> 
>         [...]
>         <interface type='ethernet'>
>           <target dev='veth1'/>
>         </interface>
> 
>     3. Do whatever you like, for example, add another end of the pair
>        to a bridge (e.g. br0)
> 
>         # brctr addif br0 veth0
>         # ip link set dev veth0 up
> 
>     4. Start a LXC domain. The interface shows up as eth0 in the domain.

Obviously the example you show here can already be accomplished
using type=bridge. So I'm curious what usage scenario you need
this addition for ? What type of config are you doing that is not
possible using one of the non-ethernet device types ?


Daniel
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