<div dir="ltr"><div><div><div><div><div><div><div>Hi All,<br><br></div>My goal is to setup a network using grizzly-quantum on Ubuntu 12.04 (cloud archive) that will allow VMs direct IP (no nat) connection to an existing network and external router but use quantum-dhcp-agent for IPAM so users can easily discover their address assignments.<br>
<br></div>My current attempt at this is using the OVS plugin and a vlan based provider network.<br><br></div>On the compute nodes this is working, VMs get on teh correct vlan and if I configure an external DHCP server they get addresses and connection (though discovering what address they got is a challenge)<br>
<br></div>The requests get to the network controller on bond0 (what I expect) but they don't get to the dhcp interface (ip netns exec qdhcp-0a1d0a27-cffa-4de3-92c5-9d3fd3f2e74d tcpdump -i tap9bc9680d-2a)<br><br></div>
I don't know if this is incorrect bridge setup (which has tripped me up before in ovs land), or the net namespaces which I'm also unfamiliar with.<br><br></div><div>OVS bits<br><br></div><div>the physical network "trunk" is what was specified in network creation, it's an interface with no IP addr and a small pile of tagged vlans<br>
</div><div><br></div>on the computenodes:<br></div># plugin ini<br><div>bridge_mappings = trunk:eth1-br<br><br>root@nova-58:~# ovs-vsctl list-ports eth1-br <br>eth1<br>phy-eth1-br<br>root@nova-58:~# ovs-vsctl list-ports br-int<br>
int-br-eth1<br>int-eth1-br<br>patch-tun<br>tap66012388-3a <- this is the VM <br><br></div><div>on network node:<br></div><div># plugin ini<br>physical_interface_mappings=trunk:bond0,default:bond0.2113<br>network_vlan_ranges = trunk:2112:2114<br>
bridge_mappings=trunk:bond0-br<br><br>root@nimbus-0:~# ovs-vsctl list-ports bond0-br<br>bond0<br>phy-bond0-br<br>root@nimbus-0:~# ovs-vsctl list-ports br-int<br>int-bond0-br<br>patch-tun<br>qr-08ea752e-e0<br>qr-89a1efea-e9<br>
tap6d0145d5-72<br>tap76d1b368-57<br>tap9bc9680d-2a <- this is the interface in the dhcp server namespace for this net<br><br><br></div><div>why aren't the bits getting from bond0 to the dhcp service?<br></div><div>
<br></div><div>Thanks,<br></div><div>-Jon<br></div></div>