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Re: [libvirt] [RFC Incomplete Patch] Libvirt + Openvswitch





On 1/27/12 11:22 AM, "kmestery" <kmestery cisco com> wrote:

> Hi Dan:
> 
> We at Cisco have been looking at this as well, and in fact were going to
> propose some things in this area as well. Our proposal (which frankly just
> builds on top of what you have):
> 
> The proposal at hand is to add some libvirt configuration as follows:
> 
> <network>
>    <name>ovs-network</name>
>    <forward mode='ovs' dev='br0'>
>    <script path='/etc/qemu-ifup-ovs'/>
>    </forward>
> </network>
> 
> This would setup the OVS network entity, and sets up a forwarding mode of
> "ovs", which indicates Open vSwitch is used to forward traffic.
> 
> <interface type='network'>
>    <source network='ovs-network'/>
>    <virtualport type='openvswitch'>
>        <parameters interfaceid="interface-xyz"/>
>    </virtualport>
> </interface>
> 
> This model of exposing parameters to virtualport types allows for further
> expansion as new interface types and parameters are added.
> 
> Thoughts?

The existing forward mode bridge could also work perhaps. If there are no
special cases for ovs.

<network>
    <name>ovs-network</name>
    <forward mode='bridge' dev='ovs-bridge'>
        <script path='/etc/qemu-ifup-ovs'/>
    </forward>
</network>

Or maybe the real syntax is,

<network>
    <name>ovs-network</name>
    <forward mode='bridge'>
        <bridge name='ovs-bridge'/>
        <script path='/etc/qemu-ifup-ovs'/>
    </forward>
</network>

Thanks,
Roopa


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