Hi, When OVS plugin is used with GRE option in Neutron, I see that each compute node has br-tun and br-int bridges created. I'm trying to understand why we need the additional br-tun bridge here. Can't we create tunneling ports in br-int bridge, and have br-int relay traffic between VM ports and tunneling ports directly? Why do we have to introduce another br-tun bridge in between? Thanks, -hs -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140424/870d52e4/attachment.html>