U can try few things quickly. a) Connectivity between ur compute node and n/w node. Check the interfaces. b) Check the route entry.
Ur compute node can ping to n/w node. U can also chk the vlan tag settings on ovs bridge. On Fri, Feb 7, 2014 at 10:11 PM, 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 > >
_______________________________________________ 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