I have setup a multi-node openstack environment with a controller, network and computer node per instructions for multi-node deploy example in http://docs.openstack.org/icehouse/install-guide/install/yum/content/ (http://docs.openstack.org/icehouse/in...)

Most forum answers for this issue, assume a single (controller+network) node https://ask.openstack.org/en/question/33492/cant-ping-the-tenant-router-gateway-from-my-external-network/. The commands like "ip netns" or "ovs-vsctl" do not make sense in a controller node; while the openvswitch, L3 and DHCP agents are all setup in the network node. I am not sure how the controller and network node work with each other.

In controller node, "ip netns" returns nothing. In network node, it returns "Object "netns" is unknown, try "ip help"."

Following are the output of "ovs-vsctl show" in controller and network nodes:

ovs-vsctl show

06af5443-1ec0-439a-ab74-c91d891f4869 ovs_version: "1.11.0"

ovs-vsctl show

6020cca2-9845-4e2b-bc72-6ec9d7a48d10 Bridge br-int Port br-int Interface br-int type: internal Bridge br-ex Port "em3" Interface "em3" Port br-ex Interface br-ex type: internal ovs_version: "1.11.0"

Any help is much appreciated.