Open Stack

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, 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


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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