Hi,
If it can help, I wrote a documentation about Openstack Essex + Quantum + OVS in multi node architecture. Maybe you will find an answer : https://github.com/EmilienM/doc-openstack Regards On Wed, Jun 20, 2012 at 8:03 AM, Gang Bao <baogang2...@gmail.com> wrote: > Description of my problem has been posted on > https://answers.launchpad.net/quantum, but I have never received any idea > from it :-( > > My environment includes two physical hosts. > One of them (domain name cc201) installed all of nova components and > Glance, Quantum, Keystone, Horizon, Open-vSwitch as controller and network > node; the other installed only nova-compute, Quantum, Open-vSwitch as > compute node. > > also I run quantum-agent, load 8021q module.etc > Everything seems runs well. > But I found a curious problem! > > On cc201, I create networks > 192.168.153.0/24(network3<http://192.168.153.0/24%28network3>, > its vlan ID is > 6)、192.168.155.0/24(network5<http://192.168.155.0/24%28network5>, > its vlan ID is 8) > I run nova-manage on host cc201 to create VMs. > the VMs are: > 192.168.153.2 (on host cc201) > 192.168.153.4 (on host cc202) > 192.168.153.5 (on host cc202) > 192.168.153.6 (on host cc202) > 192.168.155.2 (on host cc201) > 192.168.155.3 (on host cc201) > 192.168.155.4 (on host cc202) > > I log on one of them to ping another of them and capture packets through > eth1(eth1 interface the openvswitch port on both of my hosts cc201 and > cc202, by using command ovs-vsctl add-port eth1 br-int), results are as > below: > > I run tcpdump -i eth1 -v -w to capture and save packets > when I log on 192.168.153.2 (on cc201, in vlan6): > ping 192.168.153.4 (on cc202, in vlan6): (result is they connected) > on eth1 of cc201:I can see vlan 6 tag in ICMP request and reply, it is > what I expected > on eth1 of cc202:I can see vlan 6 tag in ICMP request and reply, it is > what I expected > > when I log on 192.168.153.2 (on cc201, in vlan 6): > ping 192.168.155.2 (on cc201, in vlan8): (result is they are not connected) > this result is also what I expect > > But when I log on 192.168.153.2 (on cc201, in vlan 6) > ping 192.168.155.4 (on cc202, in vlan 8): (result is they connected!!!) > on eth1 of cc201: I cannot see vlan 6 tag in ICMP, instead, I can see vlan > 8 tag in ICMP request and reply!!! > on eth1 of cc202: I cannot see vlan 6 tag in ICMP, instead, I can see vlan > 8 tag in ICMP request and reply!!! > another words, it has the wrong vlan tag! (expect 6 but actually 8!) > > so what happened ? Is this a known bug of quantum or openvswitch? > > more details is as below: > 1)nova config on cc201: nova.conf--http://paste.openstack.org/show/18588/ > nova-compute.conf--http://paste.openstack.org/show/18589/ > 2)nova config on cc202: nova.conf--http://paste.openstack.org/show/18590/ > nova-compute.conf--http://paste.openstack.org/show/18591/ > 3)other command results on cc201--http://paste.openstack.org/show/18592/ > 4)other command results on cc202--http://paste.openstack.org/show/18593/ > > when I ping from 192.168.153.2 to 192.168.155.2(result is not connected): > on cc201, the execution result of command "ovs-dpctl dump-flows br-int" is > as below: > http://paste.openstack.org/show/18625/ > and on cc201, the execution result of command "ovs-dpctl show": > http://paste.openstack.org/show/18626/ > > > when I ping from 192.168.153.2(on cc201) to 192.168.155.4(on cc202)(result > if connected!!??) > on cc201, the execution result of command "ovs-dpctl dump-flows br-int" is > as below: > http://paste.openstack.org/show/18627/ > and on cc202, the execution result of command "ovs-dpctl show": > http://paste.openstack.org/show/18628/ > and on cc202, the execution result of command "ovs-dpctl dump-flows > br-int" is as below: > http://paste.openstack.org/show/18629/ > > > > > _______________________________________________ > discuss mailing list > discuss@openvswitch.org > http://openvswitch.org/mailman/listinfo/discuss > > -- *Emilien Macchi* Phone : +33 685 117 748 Twitter : EmilienMacchi <https://twitter.com/#/EmilienMacchi> Website : http://my1.fr
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