Yes, that makes sense. I was not thinking about multiple physical nics in the provider network space.
I am trying to get a better understanding of how the vif plugins in the br-int and the bridge providing external connectivity interact. The quantum vif plug-in will do the work to configure the br-ext for tunneling (whether it is vlan or gre). In my two node setup (controller node and compute node), I am able to all my VM's instantiated properly. The controller also has n-cpu running so I get an even distribution of the vm's between the controller node and the compute nodes. The DHCP IP address is allocated fine. However when I try to vnc or ping the VM's, I am only able to get to the VM's on the controller node. I am not able to ping the instances created on the compute node. I am thinking that there is problem in my phsynet connectivity as the instances I am not able to get to are on the compute node. I have vlan tunneling enabled and here is my snippet of the ovs_quantum_plugin.ini file on the compute and controller node. Any pointers on where to look? [OVS] bridge_mappings = physnet1:br-eth2 network_vlan_ranges = physnet1:1:4094 tenant_network_type = vlan Thanks Vinay On Sun, Nov 4, 2012 at 10:44 PM, Dan Wendlandt <d...@nicira.com> wrote: > > > > On Sun, Nov 4, 2012 at 9:57 PM, Vinay Bannai <vban...@gmail.com> wrote: > >> I have a multi node setup. The CC controller doubles up as the quantum >> server and also has the l3 agent and DHCP. I have configured OVS as my >> L2 plugin with vlan tunneling. On the compute nodes, I see that in >> addition to having the integration bridge (br-int) you will also need >> the ovs physical bridge (br-th1) with the physical ether port eth1 as >> a member. I am wondering about the relationship between br-int and >> br-eth1 bridges. Wouldn't it make sense to add eth1 port to the >> integration mode. > > > you might have quantum networks that use vlans on different on different > physical NICs (e.g., eth0 and eth1), so adding each NIC directly to br-int > wouldn't make sense. Similarly, you might have some quantum networks that > also use tunneling. Hence, all vNICs are just plugged into br-int, and the > plugin is responsible for doing the right thing with the traffic. > > Dan > > > > >> Why have two bridges on the compute node for VMs to >> talk to other VMs in the same tenancy over the physical network? >> I am sure I am missing something in my understanding so would >> appreciate any comments or explanations. >> >> Thanks >> Vinay >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp >> > > > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Dan Wendlandt > Nicira, Inc: www.nicira.com > twitter: danwendlandt > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > -- Vinay Bannai Email: vban...@gmail.com Google Voice: 415 938 7576
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