On Thu, Mar 19, 2026 at 6:49 PM Rukomoinikova Aleksandra <[email protected]> wrote:
> Hi! Looks good to me too! Thanks! > ------------------------------ > *From:* Dumitru Ceara <[email protected]> > *Sent:* Thursday, March 19, 2026 7:49:50 PM > *To:* Ales Musil; [email protected] > *Cc:* Rukomoinikova Aleksandra > *Subject:* Re: [PATCH ovn 2/2] northd: Restrict external ARP request to > logical_ip for dnat_and_snat. > > Внимание: ВНЕШНИЙ отправитель! > > > Будьте осторожны с вложениями и ссылками. > > > On 3/19/26 3:33 PM, Ales Musil wrote: > > The ARP request for given dnat_and_snat coming from external network > > could be processed on multiple chassis because the flows would check > > only the residency of the logical_port. This could lead to ToR > > confusion as the reply would come from multiple chassis. > > > > This also has another consequence, for gARP that would be sent as > > request. OVN would attempt to learn the gARP on multiple chassis > > which could lead to increase in SB race condition during MAC Binding > > insert. > > > > To prevent both condition restrict the check with logical_ip. > > Now the reply to request will be generated only by the chassis > > where the IP actually resides. Same goes for gARP, only the DGP > > will attempt to learn the MAC Binding. > > > > Fixes: 289b370dc621 ("northd: Fix for distributed dnat_and_snat ARP > resolution.") > > Reported-at: https://redhat.atlassian.net/browse/FDP-3468 > > Signed-off-by: Ales Musil <[email protected]> > > --- > > Hi Ales, > > This looks good to me, thanks! > > Acked-by: Dumitru Ceara <[email protected]> > > Regards, > Dumitru > > Thank you Dumitru and Alexandra, applied to main and backported to 26.03. Regards, Ales _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
