Thanks Ales, this seems clean and simple.

Acked-by: Mark Michelson <[email protected]>

On Mon, Jan 5, 2026 at 10:12 AM Ales Musil via dev
<[email protected]> wrote:
>
> The DGP port is derived from LRP as a separate port in SB. Skip the
> "requested-tnl-key" option assignment to the DGP CR port as it would
> cause collision because the original LRP and the derived CR port
> would attempt to claim the same tunnel key. This way only the
> original will try to claim the tunnel key and CR port will get a free
> one assigned by northd. This would also be the case previously, but
> this way we will avoid warning message and extra recompute.
>
> Fixes: 3044132261d3 ("northd: Enhance implementation of port tunnel key 
> requests.")
> Reported-at: https://issues.redhat.com/browse/FDP-2764
> Signed-off-by: Ales Musil <[email protected]>
> ---
>  northd/northd.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/northd/northd.c b/northd/northd.c
> index c3c0780a3..e74cfc3a4 100644
> --- a/northd/northd.c
> +++ b/northd/northd.c
> @@ -4006,6 +4006,12 @@ ovn_port_add_tnlid(struct ovn_port *op, uint32_t 
> tunnel_key)
>  static bool
>  ovn_port_assign_requested_tnl_id(struct ovn_port *op)
>  {
> +    /* Skip the assignment for CR port, as it references the same nbsp as the
> +     * LRP and the tunnel key should be reserved by the original port. */
> +    if (is_cr_port(op)) {
> +        return true;
> +    }
> +
>      const struct smap *options = (op->nbsp
>                                    ? &op->nbsp->options
>                                    : &op->nbrp->options);
> --
> 2.52.0
>
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