Chen , I think ur packets is getting dropped. U can verify this by just checking the packets coming from compute node hitting which of the rules in br-int.
On Wed, Feb 12, 2014 at 10:56 AM, Robert Collins <robe...@robertcollins.net>wrote: > Check the outbound ofctl rules on your hypervisor nodes. If they > aren't tagging traffic properly, it won't be processed by the incoming > gre rules and you'll see the symptoms you have. > > On 8 February 2014 05:41, Chris Baker <openstack2...@qq.com> 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 > , > > 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 > > > > _______________________________________________ > > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > Post to : openstack@lists.openstack.org > > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > > > -- > Robert Collins <rbtcoll...@hp.com> > Distinguished Technologist > HP Converged Cloud > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack@lists.openstack.org > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >
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