[ovs-dev] VXLAN Patches

[Jesse Gross]

On Tue, Jan 31, 2012 at 10:34 AM, kmestery <kmestery at cisco.com> wrote:
> I'm curious what the current state of the VXLAN patches for Open vSwitch is. I saw an email from Justin on 1-24-2012 indicating the patches are being reworked at this time. I've gone ahead and forward ported the patches from last fall which Ben posted to the list, I've put them on github here:
>
> https://github.com/mestery/ovs-vxlan
>
> Before I spend much more time on this, I wanted to see if others are working on these so as not to duplicate effort. Is anyone currently working on these patches? If not, I will proceed to test them out and hope to submit them for inclusion into Open vSwitch.

The reason why the vxlan patches went out and then never included is
because they're not quite sufficient to implement the full protocol
including multicast learning.  Initially it was hoped that
implementing the wire format would be a good first step but in reality
some more infrastructure work needs to be done first so we put it on
hold while we figured it out.

The goal of the infrastructure work would be to provide information
about the tunnel header in the flow lookup and then enable the
destination for outgoing packets to be set more flexibly from
userspace.  It would then be possible to implement the current port
based mechanism, vxlan learning, and other things all from userspace
using this mechanism.

Is this something that you'd be interested in taking a shot at?  If
so, I can provide some more details about what I was thinking.