[ovs-discuss] OVS 2.10 geneve errors

[Gregory Rose]

On 8/21/2018 11:27 AM, Ben Pfaff wrote:
> On Tue, Aug 21, 2018 at 11:15:31AM -0700, Gregory Rose wrote:
>> On 8/21/2018 7:38 AM, William Tu wrote:
>>> On Mon, Aug 20, 2018 at 9:30 PM Manoj Sharma <manoj.sharma at nutanix.com> wrote:
>>>> It may be because of duplicate chassis IPs (same IP address used for more than one chassis).
>>>>
>>> Is this the case? I saw Guru is using different remote_ip
>>>
>>> --William
>> I'm looking into it today.
> My guess is that it's not a kernel issue, because userspace is
> responsible for taking a single datapath Geneve port and breaking it up
> among various OpenFlow tunnel ports.  (But that's no reason you
> shouldn't look at it.)

Your guess was good! Reverting this patch fixes the problem:

commit 7521e0cf9e88a62f2feff4e7253654557f94877e
Author: Ben Pfaff <blp at ovn.org>
Date:   Thu Jun 21 15:53:53 2018 -0700

     ofproto-dpif: Let the dpif report when a port is a duplicate.

I'm looking at it to figure out why it breaks when adding an additional 
geneve port.

Thanks,

- Greg