[rhos-list] Issues with the OVS and RDO kernel

Thomas Graf tgraf at redhat.com
Tue Jul 16 12:50:14 UTC 2013


On 07/08/2013 07:24 PM, Perry Myers wrote:
> On 07/08/2013 08:41 AM, Paul Robert Marino wrote:
>> gre tunnels are not currently supported yet in RHEL not even in the
>> openstack kernel variant last I heard.
>
> That is correct in part.
>
> The netns enabled kernel we provide in RDO for RHEL does have kernel
> support for gre and vxlan tunnels.
>
> However, openvswitch does not yet support using the in-tree gre/vxlan
> tunnel mechanism.  It only supports using the out-of-tree tunnels
> provided in the openvswitch kmod from upstream openvswitch.org git repo.
>
> What needs to happen is openvswitch needs to change to understand how to
> manipulate the in-tree tunnels.  Until that happens, we can't use
> gre/vxlan tunnels via openvswitch and therefore neutron/quantum
>
> At least this is my understanding of things.  I've added some neutron
> and ovs devs to comment

This is 100% accurate.

Work is underway for OVS to support the in-tree tunnel implementation,
the kernel side has already been partially merged,  see upstream netdev
and ovs-dev mailing lists for additional details.




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