Network unreachable error - quantum

Hi Somik,
Here is my nova.conf:

--dhcpbridge_flagfile=/etc/nova/nova.conf
--dhcpbridge=/usr/bin/nova-dhcpbridge
--logdir=/var/log/nova
--state_path=/var/lib/nova
--lock_path=/var/lock/nova
--flagfile=/etc/nova/nova-compute.conf
--use_deprecated_auth
--verbose

--sql_connection=mysql://novadbadmin:novasecret@192.168.198.59/nova

--daemonize
--s3_host=192.168.198.59
--rabbit_host=192.168.198.59
--cc_host=192.168.198.59
--ospi_host=192.168.198.59
--ec2_host=192.168.198.59
--ec2_url=http://192.168.198.59:8773/services/Cloud
--nova_url=http://192.168.198.59:8774/v1.1/

--FAKE_subdomain=ec2
--routing_source_ip=192.168.198.59
--glance_api_servers=192.168.198.59:9292
--image_service=nova.image.glance.GlanceImageService
--iscsi_ip_prefix=192.168.

# Quantum configuration
--network_manager=nova.network.quantum.manager.QuantumManager
--quantum_connection_host=192.168.198.55
--quantum_connection_port=9696
--libvirt_ovs_integration_bridge=br-int
--libvirt_vif_type=ethernet
--libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtOpenVswitchDriver
--linuxnet_interface_driver=nova.network.linux_net.LinuxOVSInterfaceDriver
--libvirt_type=qemu
--public_interface=eth0
--flat_interface=eth1
--flat_network_bridge=br-int
--quantum_default_tenant_id=tenant2

I am using minimal linux image:

ttylinux-uec-amd64-12.1_2.6.35 obtained from http://smoser.brickies.net/ubuntu/ttylinux-uec/

Is there a test VM image that is not configured with DHCP client for me test?

Tap device that got created with the launching of my VM is

tap432d5cbd-ad Link encap:Ethernet HWaddr d6:8f:3a:80:c9:ba
          inet6 addr: fe80::d48f:3aff:fe80:c9ba/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:473 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:150842 (150.8 KB) TX bytes:468 (468.0 B)

$sudo ovs-vsctl list-ifaces br-int
eth1
tap432d5cbd-ad

ovs agent that is running on the controller node does not show any logging. Only time it shows is when terminating the instances.
INFO:root:Port Disappeared: 6c2b0c4e-2185-426c-8c3b-f9014d08c5b0

Thanks,
-Jay

Hi Jay,

I would recommend for such issues, you are welcome to open up a question on
launchpad answers - https://answers.launchpad.net/quantum
That way it will easier for folks to track the history of the issue.

Rest of the comments inline.

On Tue, Mar 6, 2012 at 3:12 PM, jay_s_b <jay_s_b@xxxxxxxxx> wrote:

> Hello,
> Using quantum with openvswitch.
> I am able to launch VM . NOT using dhcp (not setting --quantum_use_dhcp).
> Still, cannot ping the VM. The console output is
> udhcpc (v1.17.2) started
> Sending discover...
> Sending discover...
> Sending discover...
>

This is DHCP Client on the Guest VM, '--quantum_use_dhcp' just allows for
existing nova-network DHCP service to plugged into the virtual Quantum
network.
If you are using a VM image where IP injection isn't working and the VM has
a DHCP Client configured, you will see the DHCP Client send out DHCP
discovers

No lease, forking to background
> starting DHCP forEthernet interface eth0 [ OK ]
> cloud-setup: checking
> http://169.254.169.254/2009-04-04/meta-data/instance-id
>

I believe you are using meta-data service, a copy of your nova.conf on
OpenStack Controller, nova-network node and nova-compute node would be
helpful.

>
> wget: can't connect to remote host (169.254.169.254): Network is
> unreachable
> cloud-setup: failed 1/30: up 16.75. request failed
> wget: can't connect to remote host (169.254.169.254): Network is
> unreachable
> cloud-setup: failed 2/30: up 17.91. request failed
> Why is VM boot using dhcp when quantum dhcp is not used?
>

I referenced the reason for this above.

>
> TAP device is correctly created. I do not any errors in the logs of
> quantum/nova-network/openvswitch.
>

I believe, if you statically configure IP on the instance which didn't
receive IP, you should be able to test pings, but thats
a guess based on what I can make out from your email.

>
> Thanks,
> -Jay
>
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--
Somik Behera | Nicira Networks, Inc. | somik