[Openstack-operators] neutron network configuration: linux bridges

Assaf Muller amuller at redhat.com
Thu Aug 28 11:57:03 UTC 2014

----- Original Message -----
> I found something strange I can't solve by myself.
> Sometimes I getting configuration where VMs traffic get to the gre
> tunnes via following sequence: tap->qbr->qvb->qvo->br-int->br-tun->eth0.
> It described here:
> http://docs.openstack.org/grizzly/openstack-network/admin/content/under_the_hood_openvswitch.html
> But sometimes I getting very different configuration:
> tap->br-int->br-tun->eth0. It working, and working fine. And I just
> can't find option or configuration difference, or combination of both
> which cause switching between 'simple' and 'normal' scheme. I feel like
> I don't understand something basic and something important.
> Any ideas? Thanks!

It depends on the vif_driver = nova.virt.libvirt.vif.LibvirtGenericVIFDriver
option in nova.conf.

> _______________________________________________
> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators

More information about the OpenStack-operators mailing list