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Re: brctl setfd virbr0 0.1 by default?



On Tue, Jul 22, 2008 at 03:38:39PM -0400, David Woodhouse wrote:
> On Tue, 2008-07-22 at 10:58 +0100, Daniel P. Berrange wrote:
> > On Mon, Jul 21, 2008 at 04:06:50PM -0400, Warren Togami wrote:
> > > https://bugzilla.redhat.com/show_bug.cgi?id=435757
> > > Sometime after F8, something changed where stuff attached to a bridge 
> > > fails to connect until 15 seconds later.  A manual workaround of brctl 
> > > setfd BRIDGENAME 0.1 makes stuff work immediately.
> > > 
> > > Are there any reasons why don't we do this by default for virbr0 in libvirt?
> > 
> > Because no one has ever suggested it before...
> > 
> > Arguably we should just turn off STP on the virbr0 device. Since it is
> > not connected directly to the public LAN[1] there is no risk of network
> > loops and thus spanning tree protocol is pointless for virbr0.
> 
> Is there no chance of bridging directly to the outside world by adding a
> real Ethernet device to the bridge?

Yes, you can do that too using regular Fedora initscripts. Warren is
just referring to libvirt's  'Virtual Network' capability which is
NAT based. You can read more about both options for network connectivity
here:

  http://wiki.libvirt.org/page/Networking


Regards,
Daniel
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