Answer by slogan-r for I am trying to run an all-in-one using stack.sh with the latest (folsom3 and master) branches of Quantum on KVM but the gateway interface does not get created and as a result VM's do not get an IP. I've updated the install to include the steps mentioned here http://wiki.openstack.org/RunningQuantumV2Api (http://wiki.openstack.org/RunningQuan...) and here http://wiki.openstack.org/QuantumDevstack (http://wiki.openstack.org/QuantumDevs...) but never get a gateway interface after creating a network and subnet and spinning up a VM. This is what ovs-vsctl displays (after creating a network and subnet and spinning up a VM: stack@esg-dell-c4-s11:~/devstack$ sudo ovs-vsctl show 5dab4e1c-89c4-421e-a737-03b338eddc1a Bridge br-int Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} Port "tap73f2ee73-79" tag: 1 Interface "tap73f2ee73-79" type: internal Port "tapd425d955-15" tag: 2 Interface "tapd425d955-15" type: internal Port br-int Interface br-int type: internal Port "tapc46b72b3-b3" tag: 2 Interface "tapc46b72b3-b3" Bridge br-tun Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Port br-tun Interface br-tun type: internal ovs_version: "1.4.0+build0" Are there any additional steps that need to be run to make this work with the V2 Quantum API? Eoghan

Eoghan: Glad to hear it. My dnsmasq process is slightly different, it has one additional arg (--dhcp-script) root 5524 5523 0 14:49 ? 00:00:00 dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tap0af8ef80-41 --except-interface=lo --domain=openstacklocal --pid-file=/opt/stack/data/dhcp/3416e686-fc5e-4efc-b204-9f92f88e9d9c/pid --dhcp-hostsfile=/opt/stack/data/dhcp/3416e686-fc5e-4efc-b204-9f92f88e9d9c/host --dhcp-optsfile=/opt/stack/data/dhcp/3416e686-fc5e-4efc-b204-9f92f88e9d9c/opts --dhcp-script=/opt/stack/quantum/bin/quantum-dhcp-agent-dnsmasq-lease-update --leasefile-ro --dhcp-range=set:tag0,10.4.128.0,static,120s Can you detail more about what you did with namespaces? Not familiar with that. Aaron: I'm going to scp my localrc to a safe place, reimage my blade with a fresh copy of Ubuntu 12.04, and see if I can reproduce this issue with quantum-dhcp-agent not starting. Give me a couple of hours to report back... :-) I think it would be awesome to the community to publish a wiki page with a mostly copy-pasteable localrc for using devstack with quantum v2 and OVS. If one looks hard enough, it can be pieced together from various posts and such, but that can be error prone and tedious (as you have seen from my recent questions, I have never been sure about keystone, the need to specify v2 flag, what exactly I should use for enabled services...). Let me know if I can help with this if you agree it is worthwhile (and I hope you do :-).