Open Stack

Hi,

I had the same problem.
My problem was that the openvswitch plugin's config file was missing on
the controller node, and because of this, the horizon used "local"
network not "gre" (the same problem can be the problem with VLAN setups)

you can chek it with neutron net-show.

I hope it helps


Dancsa


On 2014-02-07 17:41, Chris Baker wrote:
> Hi guys,
>
> My havana installation has 3 nodes:
> control node, runs keystone APIs and neutron server;
> network node, runs l3, dhcp, metadata, ovs agents; with VLAN mode
> compute node, runs nova compute and ovs agents;
>
> repo from
> http://repos.fedorapeople.org/repos/openstack/openstack-havana
> <http://repos.fedorapeople.org/repos/openstack/openstack-havana/>, and
> the os gets updated well with latest kernel.
>
>
> Currently my VM can't get dhcp ack from network node.
> Based the topology picture for the package flow:
> http://docs.openstack.org/admin-guide-cloud/content/figures/10/a/common/figures/under-the-hood-scenario-1-ovs-network.png
> <http://docs.openstack.org/admin-guide-cloud/content/figures/10/a/common/figures/under-the-hood-scenario-1-ovs-network.png>
>
> With the tcpdump result on both network and compute node, it says the
> dhcp request successfully leaves compute node, and it can reach the
> "int-br-eth1" of network node, but not the next step br "br-int", so
> the dnsmasq would not able to ack. I think this is the problem why I
> can't get dhcp ipaddr.
>
> # uname -r
> 2.6.32-358.123.2.openstack.el6.x86_64
>
> # ip netns  (should we say namespace works well?)
> qdhcp-11f3adc1-6a2e-429b-9679-b565347e2f74
> qdhcp-4aaa7c19-7864-4b17-aebc-d6aa354d4cd5
> qdhcp-285e259e-e3ec-4149-81db-8e94e1713aa2
> qdhcp-4044cdf0-717b-4628-9ce0-a9ff49533d8f
> qrouter-76c9b884-5928-42f4-a016-afab1b72066b
>
> Anyone can help where/which section I should check for the issue next?
> or let me know if other info is needed.
> Thanks a lot.
>
> Chris
>
>
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