[ovs-dev] [PATCH] Allow to create tunnel ports with the same config

[Ihar Hrachyshka]

On Thu, Nov 19, 2020 at 12:51 AM Ben Pfaff <blp at ovn.org> wrote:
>
> On Wed, Nov 18, 2020 at 10:35:01PM -0500, Ihar Hrachyshka wrote:
> > It's a legal setup where tunnel ports with the same config are created
> > on different bridges served by Open vSwitch. Specifically, multiple
> > OVN controllers may emulate multiple chassis running on the same
> > physical host, in which case they may need to create separate tunnel
> > ports to connect to the same remote chassis on their respective
> > bridges.
> >
> > Signed-off-by: Ihar Hrachyshka <ihrachys at redhat.com>
>
> That makes sense for sending packets, but which one is supposed to
> receive a packet when one arrives for that tunnel?
>

If we are talking in OVN context, each virtual ovn-controller chassis
on the same host has to have a different IP / port to distinguish
between chassis. I don't think it's a useful configuration to have two
two incoming tunnel ports with the same config for the same IP that
are not served by separate DST IP addresses.

Ihar