I'm trying to compare (1) default OpenStack testbed using LibvirtGenericVIFDriver to (2) SR-IOV+VLAN testbed using MlxEthVIFDriver. (1) works fine, but (2) doesn't have qv* device (ip link / ovs-ofctl show br-int) and doesn't have iptables rules that are related to neutron-openvswi-* and VM IP/port.
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