Yes, that makes sense. I was not thinking about multiple physical nics in the provider network space. <div><br></div><div>I am trying to get a better understanding of how the vif plugins in the br-int and the bridge providing external connectivity interact. </div>
<div>The quantum vif plug-in will do the work to configure the br-ext for tunneling (whether it is vlan or gre). </div><div><br></div><div>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. <br>
<br>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?</div><div><br></div><div><div>[OVS]</div><div>bridge_mappings = physnet1:br-eth2</div>
<div>network_vlan_ranges = physnet1:1:4094</div><div>tenant_network_type = vlan</div><div><br></div><div><br></div><div><div>Thanks</div><div>Vinay</div></div><div class="gmail_quote">On Sun, Nov 4, 2012 at 10:44 PM, Dan Wendlandt <span dir="ltr"><<a href="mailto:dan@nicira.com" target="_blank">dan@nicira.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
<div class="gmail_extra"><br><br><div class="gmail_quote"><div>On Sun, Nov 4, 2012 at 9:57 PM, Vinay Bannai <span dir="ltr"><<a href="mailto:vbannai@gmail.com" target="_blank">vbannai@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have a multi node setup. The CC controller doubles up as the quantum<br>
server and also has the l3 agent and DHCP. I have configured OVS as my<br>
L2 plugin with vlan tunneling. On the compute nodes, I see that in<br>
addition to having the integration bridge (br-int) you will also need<br>
the ovs physical bridge (br-th1) with the physical ether port eth1 as<br>
a member. I am wondering about the relationship between br-int and<br>
br-eth1 bridges. Wouldn't it make sense to add eth1 port to the<br>
integration mode. </blockquote><div><br></div></div><div>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. </div>
<div><br></div><div>Dan</div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Why have two bridges on the compute node for VMs to<br>
talk to other VMs in the same tenancy over the physical network?<br>
I am sure I am missing something in my understanding so would<br>
appreciate any comments or explanations.<br>
<br>
Thanks<br>
Vinay<br>
<br></div>
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</font></span></blockquote></div><span><font color="#888888"><br><br clear="all"><div><br></div>-- <br>~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>Dan Wendlandt <div>Nicira, Inc: <a href="http://www.nicira.com" target="_blank">www.nicira.com</a><br>
<div>twitter: danwendlandt<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~<br></div></div><br>
</font></span></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br>Vinay Bannai<br>Email: <a href="mailto:vbannai@gmail.com" target="_blank">vbannai@gmail.com</a><br>Google Voice: <a href="tel:415%20938%207576" value="+14159387576" target="_blank">415 938 7576</a><br>
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