Re: limit conectivity of a VM

[linux_kvm@proinbox.com]

> if you had infinitely fast processors, every virtual network would be
> infinitely fast.

I see on a Vyatta VM, that an interface's link speed attribute can be
explicitly defined, along with duplex.

Possible values are 10 100 & 1000 Mb, and are configured independently
of the driver/model of NIC.

I haven't tested it yet, and since discovering this detail, have been
somewhat disheartened at the thought of ~8 Gb vhost throughput being
throttled by the highest possible link speed setting being 1000 Mb.

So maybe plan b could be to install a test router just for that
function, and loop through it.



-C



On Sat, 20 Nov 2010 10:39 -0500, "Javier Guerra Giraldez"
<javier@guerrag.com> wrote:
> On Sat, Nov 20, 2010 at 3:40 AM, Thomas Mueller <thomas@chaschperli.ch>
> wrote:
> > maybe one of the virtual network cards is 10mbit? start kvm with "-net
> > nic,model=?" to get a list.
> 
> wouldn't matter.   different models emulate the hardware registers
> used to transmit, not the performance.
> 
> if you had infinitely fast processors, every virtual network would be
> infinitely fast.
> 
> -- 
> Javier
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