A misunderstanding on my part. Ovswitch, unlike the Linux Bridge driver,
needs only one bridge to function.
If for example you have two VMs in the same host, and want them to be in
different VLANs (e.g vlan 1 and 2), with Linux bridges you accomplish
that with
vm nic to physical nic
vm1:eth0 ---- vnet0 ---- br0 ---- eth0.1
vm2:eth0 ---- vnet1 ---- br1 ---- eth0.2
In ovswitch you have
vm nic to ovs bridge
vm1:eth0 ---- vnet0 ---(tag=1)--- ovs-br0
vm2:eth0 ---- vnet1 ---(tag=2)--- ovs-br0
ovs bridge to physical nic
ovs-br0 ---(tags=all)--- eth0
If this is how OpenNebula suggests using ovswitch, configuring the ovs
bridge is part of installing and configuring ovswitch on the host. Then
you need to specify the ovs bridge in your network configurations.
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