[vbox-dev] [PATCH] VDE native support for VirtualBox v0.1

Renzo Davoli renzo at cs.unibo.it
Mon Apr 5 17:56:03 GMT 2010

> Good to hear that !
> But until now, you could use VDE too, by manually creating tun/tap device on
> Linux host, then bridging it to VBox VM on one side, and to VDE on the other
> side.
> Is this solution any better?

1- It is easier, just select vde from the menu (optionally add the name of the switch
if you have many of them running on your host).
2- The VDE network infrastructure can be set up by an unprivileged user, there is no
need for root access (your solution requires root access to set up the vde_switch,
and to set up the kernel bridge).
3- It should be faster, as VirtualBox exchange its network packets directly with the
vde_switch. In the previous solution there is a useless point to point bridge that
processes each packet.
4- Using the "pre-existent approach", if you need a complex network involving VirtualBox 
VM, QEMU/KVM, User-Mode Linux and other machines, you'll have to create several tap interfaces 
(two for each VirtualBOX if I have understood your design, a bit messy design).
5- A change in the network topology is now as simple as typing a different switch name
in a text box. No tap interfaces to redefine or brctl commands to type.

I think it is fairly better.


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