Hi,
I've asked this question a few times on the IRC channel, and I have an open question on ask.openstack.org but so far noone has managed to answer it successfully. I have installed OpenStack Grizzly on Ubuntu 12.04 LTS with Quantum and it is up to date with the Ubuntu OpenStack respository. I have a simple problem: the network interface is not being created when an instance starts up. Horizon seems to think that the interface is correct. It lists: IP Addresses --------------- Officenet However, in the logs of the instance I get: ip: SIOCGIFFLAGS: No such device ...and the only interface that exists inside the instance is lo. I don't appear to get any obvious errors in any of the quantum or nova logs. I believe that quantum is supposed to create a tap port on the OVS bridge specified by externel_network_bridge (br-eth1), but this is not happening. The network physical port connected via eth1 has a hardware DHCP server on it, but it doesn't appear to assigning a network device on that bridge, so the DHCP request is not being forwarded. I have included my quantum config, l3_agent.ini, and the output of ovs-vsctl as I guess these are the most appropriate. (Removing commented-out defaults) Other than solving my particular problem, I'm also trying to understand the process that occurs here. What service (nova/quantum/something else?) actually creates the port on the OVS bridge and links it to the instance's virtual network device? Thanks for the help, Tudor. Quantum.conf ========= [DEFAULT] # Show more verbose log output (sets INFO log level output) verbose = True # Show debugging output in logs (sets DEBUG log level output) debug = True # Address to bind the API server bind_host = 0.0.0.0 # Port the bind the API server to bind_port = 9696 # Quantum plugin provider module core_plugin = quantum.plugins.openvswitch.ovs_quantum_plugin.OVSQuantumPluginV2 # Paste configuration file api_paste_config = /etc/quantum/api-paste.ini # The strategy to be used for auth. # Supported values are 'keystone'(default), 'noauth'. auth_strategy = keystone # AMQP exchange to connect to if using RabbitMQ or QPID control_exchange = quantum # If passed, use a fake RabbitMQ provider fake_rabbit = False # IP address of the RabbitMQ installation rabbit_host = 10.0.0.1 # Password of the RabbitMQ server rabbit_password = password # ============ Notification System Options ===================== # Notifications can be sent when network/subnet/port are create, updated or deleted. # There are four methods of sending notifications, logging (via the # log_file directive), rpc (via a message queue), # noop (no notifications sent, the default) or list of them # Defined in notifier api notification_driver = quantum.openstack.common.notifier.list_notifier # Defined in list_notifier list_notifier_drivers = quantum.openstack.common.notifier.rabbit_notifier [QUOTAS] L3_agent.ini ======== [DEFAULT] # OVS interface_driver = quantum.agent.linux.interface.OVSInterfaceDriver # LinuxBridge #interface_driver = quantum.agent.linux.interface.BridgeInterfaceDriver # The Quantum user information for accessing the Quantum API. auth_url = http://10.0.0.1:35357/v2.0 auth_region = RegionOne admin_tenant_name = service admin_user = quantum admin_password = password # Use "sudo quantum-rootwrap /etc/quantum/rootwrap.conf" to use the real # root filter facility. # Change to "sudo" to skip the filtering and just run the comand directly root_helper = sudo /usr/bin/quantum-rootwrap /etc/quantum/rootwrap.conf # Allow overlapping IP (Must have kernel build with CONFIG_NET_NS=y and # iproute2 package that supports namespaces). # use_namespaces = True use_namespaces = False # If use_namespaces is set as False then the agent can only configure one router. # This is done by setting the specific router_id. # router_id = router_id = e263323d-ad1d-4930-8739-ebf80cef3f96 # Each L3 agent can be associated with at most one external network. This # value should be set to the UUID of that external network. If empty, # the agent will enforce that only a single external networks exists and # use that external network id # gateway_external_net_id = gateway_external_net_id = e1bbbcb1-e20d-48e5-ae89-823c1a485625 # Indicates that this L3 agent should also handle routers that do not have # an external network gateway configured. This option should be True only # for a single agent in a Quantum deployment, and may be False for all agents # if all routers must have an external network gateway # handle_internal_only_routers = True # Name of bridge used for external network traffic. This should be set to # empty value for the linux bridge # external_network_bridge = br-ex external_network_bridge = br-eth1 # IP address used by Nova metadata server # metadata_ip = metadata_ip = 10.0.0.1 # TCP Port used by Nova metadata server # metadata_port = 8775 # The time in seconds between state poll requests # polling_interval = 3 ovs-vsctl show ========= # ovs-vsctl show e1bbbcb1-e20d-48e5-ae89-823c1a485625 Bridge "br-eth1" Port "phy-br-eth1" Interface "phy-br-eth1" Port "eth1" Interface "eth1" Port "br-eth1" Interface "br-eth1" type: internal Bridge br-tun Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Port br-tun Interface br-tun type: internal Bridge "br-eth0" Port "phy-br-eth0" Interface "phy-br-eth0" Port "eth0" Interface "eth0" Port "br-eth0" Interface "br-eth0" type: internal ovs_version: "1.4.0+build0"
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