Am Tue, Apr 28, 2026 at 05:17:34PM +0200 schrieb Lorenzo Bianconi:
> On Apr 28, Lorenzo Bianconi wrote:
> > > On 4/27/26 3:50 PM, Lorenzo Bianconi wrote:
> > > >> In the OVN logical switch pipeline, broadcast ARP requests (and ND_NS)
> > > >> generated by VIFs and by router ports are also flooded into the per 
> > > >> switch
> > > >> MC_FLOOD_L2 multicast group which includes all non-router ports of the
> > > >> switch.
> > > >> In deployments with large logical broadcast domains (logical switches 
> > > >> with
> > > >> a significantly large number of switch ports, e.g. 200+) this becomes a
> > > >> problem because the MC_FLOOD_L2 multicast group has a lot of ports so 
> > > >> the
> > > >> chain of the OpenFlow tables that the packet needs to traverse for full
> > > >> processing becomes really long, going over OVS' 4K resubmit limit and
> > > >> causing the packet to be dropped.
> > > >> The main reason why the ARP packets are currently sent to all 
> > > >> non-router
> > > >> ports is to allow the workloads to learn the mapping between arp.spa
> > > >> (source IP) and arp.sha (source MAC). However, that's just an 
> > > >> optimization,
> > > >> which might avoid future ARP requests from other workloads; and it's 
> > > >> not a
> > > >> requirement, nothing would really break if we didn't forward those 
> > > >> packets
> > > >> to all other VIFs.
> > > >> It's probably acceptable to change the behavior and just forward these 
> > > >> ARP
> > > >> requests to the ports that have LSP.addresses="unknown" as the 
> > > >> workloads
> > > >> behind those ports (or the fabric for the localnet case) might 
> > > >> actually own
> > > >> the arp.tpa target IP.
> > > >>
> > > >> Reported-at: https://redhat.atlassian.net/browse/FDP-3439
> > > >> Co-authored-by: Dumitru Ceara <[email protected]>
> > > >> Signed-off-by: Dumitru Ceara <[email protected]>
> > > > 
> > > > @Dumitru: I kept your SoB here but I was not sure about it. Please let 
> > > > me know
> > > > if you are fine or not with it.
> > > > 
> > > 
> > > Hi Lorenzo,
> > > 
> > > I guess that's fine.  I do have some comments below.
> > > 
> > > > Regards,
> > > > Lorenzo
> > > > 
> > > >> Signed-off-by: Lorenzo Bianconi <[email protected]>
> > > >> ---
> > > >> Changes since v1:
> > > >> - Add dedicated GARP management
> > > >> - Do not skip any unit-test
> > > >> ---
> > > >>  northd/northd.c         |  25 +++++-
> > > >>  northd/ovn-northd.8.xml |  14 ++-
> > > >>  ovs                     |   2 +-
> > > >>  tests/ovn-northd.at     | 192 +++++++++++++++++++++++++---------------
> > > >>  tests/ovn.at            |  38 ++++----
> > > >>  5 files changed, 173 insertions(+), 98 deletions(-)
> > > >>
> > > >> diff --git a/northd/northd.c b/northd/northd.c
> > > >> index 0b52db6cf..e606365c6 100644
> > > >> --- a/northd/northd.c
> > > >> +++ b/northd/northd.c
> > > >> @@ -9583,6 +9583,7 @@ build_lswitch_rport_arp_req_flow(
> > > >>  {
> > > >>      struct ds match   = DS_EMPTY_INITIALIZER;
> > > >>      struct ds m       = DS_EMPTY_INITIALIZER;
> > > >> +    struct ds m_garp  = DS_EMPTY_INITIALIZER;
> > > >>      struct ds actions = DS_EMPTY_INITIALIZER;
> > > >>  
> > > >>      arp_nd_ns_match(ips, addr_family, &m);
> > > >> @@ -9604,16 +9605,27 @@ build_lswitch_rport_arp_req_flow(
> > > >>                        patch_op->cr_port->json_key);
> > > >>      }
> > > >>  
> > > >> +    if (addr_family == AF_INET) {
> > > >> +        ds_clone(&m_garp, &match);
> > > >> +        ds_put_format(&m_garp, " && arp.spa == %s", ips);
> > > >> +    }
> > > >> +
> > > >>      /* Send a the packet to the router pipeline.  If the switch has 
> > > >> non-router
> > > >>       * ports then flood it there as well.
> > > >>       */
> > > >>      if (vector_len(&od->router_ports) != od->nbs->n_ports) {
> > > >>          ds_put_format(&actions, "clone {outport = %s; output; }; "
> > > >> -                                "outport = \""MC_FLOOD_L2"\"; 
> > > >> output;",
> > > >> +                                "outport = \""MC_UNKNOWN"\"; output;",
> > > >>                        patch_op->json_key);
> > > >>          ovn_lflow_add(lflows, od, S_SWITCH_IN_L2_LKUP, priority,
> > > >>                        ds_cstr(&match), ds_cstr(&actions), lflow_ref,
> > > >>                        WITH_HINT(stage_hint));
> > > >> +        if (addr_family == AF_INET) {
> > > >> +            ovn_lflow_add(lflows, od, S_SWITCH_IN_L2_LKUP, priority + 
> > > >> 10,
> > > >> +                          ds_cstr(&m_garp),
> > > >> +                          "outport = \""MC_FLOOD_L2"\"; output;",
> > > >> +                          lflow_ref, WITH_HINT(stage_hint));
> > > >> +        }
> > > 
> > > What about IPv6 gratuitous NS?  Now those go to MC_UNKNOWN while they
> > > used to go to MC_FLOOD_L2.  Do we need a similar change for IPv6 as you
> > > do here for
> > 
> > This is done just for GARP, is there an equivalent for IPv6? let me check.
> 
> According to my understanding the GARP IPv6 equivalent are unsolicited
> Neighbor Advertisement packets. Reviewing the code, OVN logical router does 
> not
> support them, so I guess we do not need any extra flows here. What do you 
> think?

Hi everyone,

the thing is that endpoints on other VIFs might support handling the
UNAs, so we would still need to forward the packet there, otherwise we
have the same issue as for ipv4 previously.

Keepalived code to send these UNAs 
https://github.com/acassen/keepalived/blob/master/keepalived/vrrp/vrrp_ndisc.c#L166
If i get it right we could filter on the ipv6 src ip being equal to the
neighbor Advertisement target ip.
But not sure if this is generalizable for other implementations.

Thanks
Felix


> 
> Regards,
> Lorenzo
> 
> > 
> > > 
> > > >>      } else {
> > > >>          ds_put_format(&actions, "outport = %s; output;", 
> > > >> patch_op->json_key);
> > > >>          ovn_lflow_add(lflows, od, S_SWITCH_IN_L2_LKUP, priority,
> > > >> @@ -9628,11 +9640,17 @@ build_lswitch_rport_arp_req_flow(
> > > >>          ds_clear(&actions);
> > > >>          if (vector_len(&od->router_ports) != od->nbs->n_ports) {
> > > >>              ds_put_format(&actions, "clone {outport = %s; output; }; "
> > > >> -                                    "outport = \""MC_FLOOD_L2"\"; 
> > > >> output;",
> > > >> +                                    "outport = \""MC_UNKNOWN"\"; 
> > > >> output;",
> > > >>                            patch_op->cr_port->json_key);
> > > >>              ovn_lflow_add(lflows, od, S_SWITCH_IN_L2_LKUP, priority,
> > > >>                            ds_cstr(&match), ds_cstr(&actions), 
> > > >> lflow_ref,
> > > >>                            WITH_HINT(stage_hint));
> > > >> +            if (addr_family == AF_INET) {
> > > >> +                ovn_lflow_add(lflows, od, S_SWITCH_IN_L2_LKUP, 
> > > >> priority + 10,
> > > >> +                              ds_cstr(&m_garp),
> > > >> +                              "outport = \""MC_FLOOD_L2"\"; output;",
> > > >> +                              lflow_ref, WITH_HINT(stage_hint));
> > > >> +            }
> > > >>          } else {
> > > >>              ds_put_format(&actions, "outport = %s; output;",
> > > >>                            patch_op->cr_port->json_key);
> > > >> @@ -9644,6 +9662,7 @@ build_lswitch_rport_arp_req_flow(
> > > >>  
> > > >>      ds_destroy(&m);
> > > >>      ds_destroy(&match);
> > > >> +    ds_destroy(&m_garp);
> > > >>      ds_destroy(&actions);
> > > >>  }
> > > >>  
> > > >> @@ -11061,7 +11080,7 @@ build_lswitch_destination_lookup_bmcast(struct 
> > > >> ovn_datapath *od,
> > > >>                         "broadcast-arps-to-all-routers", true)) {
> > > >>          ovn_lflow_add(lflows, od, S_SWITCH_IN_L2_LKUP, 72,
> > > >>                        "eth.mcast && (arp.op == 1 || nd_ns)",
> > > >> -                      "outport = \""MC_FLOOD_L2"\"; output;",
> > > >> +                      "outport = \""MC_UNKNOWN"\"; output;",
> > > >>                        lflow_ref);
> > > >>      }
> > > >>  
> > > >> diff --git a/northd/ovn-northd.8.xml b/northd/ovn-northd.8.xml
> > > >> index 4d6370da6..75c17e75d 100644
> > > >> --- a/northd/ovn-northd.8.xml
> > > >> +++ b/northd/ovn-northd.8.xml
> > > >> @@ -2346,6 +2346,14 @@ output;
> > > >>          <ref table="IGMP_Group" db="OVN_Southbound"/> entries.
> > > >>        </li>
> > > >>  
> > > >> +      <li>
> > > >> +        Priority-95 flows for each IP address/VIP/NAT address owned 
> > > >> by a
> > > >> +        router port connected to the switch. These flows match GARP 
> > > >> packets
> > > >> +        for the specific IP addresses. Matched packets are forwarded 
> > > >> to the
> > > >> +        <code>MC_FLOOD_L2</code> multicast group which contains all 
> > > >> non-router
> > > >> +        logical ports.
> > > >> +      </li>
> > > >> +
> > > >>        <li>
> > > >>          Priority-90 flows that forward registered IP multicast 
> > > >> traffic to
> > > >>          their corresponding multicast group, which 
> > > >> <code>ovn-northd</code>
> > > >> @@ -2402,8 +2410,8 @@ output;
> > > >>          router port connected to the switch. These flows match ARP 
> > > >> requests
> > > >>          and ND packets for the specific IP addresses.  Matched 
> > > >> packets are
> > > >>          forwarded only to the router that owns the IP address and to 
> > > >> the
> > > >> -        <code>MC_FLOOD_L2</code> multicast group which contains all 
> > > >> non-router
> > > >> -        logical ports.
> > > >> +        <code>MC_UNKNOWN</code> multicast group which contains all 
> > > >> enabled
> > > >> +        logical ports that accept unknown destination packets.
> > > >>        </li>
> > > >>  
> > > >>        <li>
> > > >> @@ -2426,7 +2434,7 @@ output;
> > > >>        <li>
> > > >>          A priority-72 flow that outputs all ARP requests and ND NS 
> > > >> (Neighbor
> > > >>          Solicitation) packets with an Ethernet broadcast or multicast
> > > >> -        <code>eth.dst</code> to the <code>MC_FLOOD_L2</code> 
> > > >> multicast group
> > > >> +        <code>eth.dst</code> to the <code>MC_UNKNOWN</code> multicast 
> > > >> group
> > > >>          if 
> > > >> <code>other_config:broadcast-arps-to-all-routers=false</code>.
> > > >>        </li>
> > > >>  
> > > >> diff --git a/ovs b/ovs
> > > >> index bdb95cc19..6aefe1db3 160000
> > > >> --- a/ovs
> > > >> +++ b/ovs
> > > >> @@ -1 +1 @@
> > > >> -Subproject commit bdb95cc1920d4ab66fe062a9470eeb33a51d33e2
> > > >> +Subproject commit 6aefe1db31e3df4e7b64c21f54a7287e4663e1e4
> > > >> diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
> > > >> index 1d7bd6c28..b66f36691 100644
> > > >> --- a/tests/ovn-northd.at
> > > >> +++ b/tests/ovn-northd.at
> > > >> @@ -5867,8 +5867,9 @@ AT_CHECK([grep "ls_in_l2_lkup" ls1_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:01:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > 
> > > This is the IPv6 flow I mentioned above, now we'd only flood gratuitous
> > > NS from this router port owned IPv6 address to MC_UNKNOWN, not to any
> > > VIFs we might have in the system.
> > 
> > ack, I will fix it.
> > 
> > Regards,
> > Lorenzo
> > 
> > > 
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1 && arp.spa == 192.168.1.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  ovn-sbctl lflow-list ls2 > ls2_lflows
> > > >> @@ -5883,8 +5884,9 @@ AT_CHECK([grep "ls_in_l2_lkup" ls2_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:02:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:201), action=(clone 
> > > >> {outport = "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:201), action=(clone 
> > > >> {outport = "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1 && arp.spa == 192.168.2.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  AS_BOX([Adding some reachable NAT addresses])
> > > >> @@ -5907,10 +5909,13 @@ AT_CHECK([grep "ls_in_l2_lkup" ls1_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:01:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100 && arp.spa == 10.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200 && arp.spa == 10.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1 && arp.spa == 192.168.1.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  ovn-sbctl lflow-list ls2 > ls2_lflows
> > > >> @@ -5925,10 +5930,13 @@ AT_CHECK([grep "ls_in_l2_lkup" ls2_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:02:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.100), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.200), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:201), action=(clone 
> > > >> {outport = "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.100), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.200), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:201), action=(clone 
> > > >> {outport = "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1 && arp.spa == 192.168.2.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.100 && arp.spa == 20.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.200 && arp.spa == 20.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  AS_BOX([Adding some unreachable NAT addresses])
> > > >> @@ -5951,12 +5959,17 @@ AT_CHECK([grep "ls_in_l2_lkup" ls1_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:01:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100 && arp.spa == 10.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200 && arp.spa == 10.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1 && arp.spa == 192.168.1.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100 && arp.spa == 30.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200 && arp.spa == 30.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  ovn-sbctl lflow-list ls2 > ls2_lflows
> > > >> @@ -5971,12 +5984,17 @@ AT_CHECK([grep "ls_in_l2_lkup" ls2_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:02:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.100), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.200), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 40.0.0.100), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 40.0.0.200), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:201), action=(clone 
> > > >> {outport = "ls2-ro2"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.100), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.200), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 40.0.0.100), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 40.0.0.200), action=(clone {outport = 
> > > >> "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:201), action=(clone 
> > > >> {outport = "ls2-ro2"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.2.1 && arp.spa == 192.168.2.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.100 && arp.spa == 20.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 20.0.0.200 && arp.spa == 20.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 40.0.0.100 && arp.spa == 40.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 40.0.0.200 && arp.spa == 40.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  AS_BOX([Adding load balancer reachable VIPs to ro1])
> > > >> @@ -5996,13 +6014,19 @@ AT_CHECK([grep "ls_in_l2_lkup" ls1_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:01:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100), action=(clone {outport 
> > > >> = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100), action=(clone {outport 
> > > >> = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100 && arp.spa == 10.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200 && arp.spa == 10.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1 && arp.spa == 192.168.1.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100 && arp.spa == 
> > > >> 192.168.1.100), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100 && arp.spa == 30.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200 && arp.spa == 30.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  AS_BOX([Adding load balancer unreachable VIPs to ro1])
> > > >> @@ -6020,13 +6044,19 @@ AT_CHECK([grep "ls_in_l2_lkup" ls1_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:01:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100), action=(clone {outport 
> > > >> = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100), action=(clone {outport 
> > > >> = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100 && arp.spa == 10.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200 && arp.spa == 10.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1 && arp.spa == 192.168.1.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100 && arp.spa == 
> > > >> 192.168.1.100), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100 && arp.spa == 30.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200 && arp.spa == 30.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  # Make sure that there is no flow for VIP 192.168.4.100 as ro1-ls1 
> > > >> doesn't
> > > >> @@ -6051,13 +6081,19 @@ AT_CHECK([grep "ls_in_l2_lkup" ls1_lflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:01:01} && eth.dst == ff:ff:ff:ff:ff:ff && (arp.op == 1 || 
> > > >> rarp.op == 3 || nd_ns)), action=(outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100), action=(clone {outport 
> > > >> = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100), action=(clone {outport 
> > > >> = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200), action=(clone {outport = 
> > > >> "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:101), action=(clone 
> > > >> {outport = "ls1-ro1"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.100 && arp.spa == 10.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 10.0.0.200 && arp.spa == 10.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.1 && arp.spa == 192.168.1.1), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 192.168.1.100 && arp.spa == 
> > > >> 192.168.1.100), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.100 && arp.spa == 30.0.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 30.0.0.200 && arp.spa == 30.0.0.200), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  
> > > >> @@ -8066,17 +8102,17 @@ check ovn-nbctl lsp-add S1 S1-VIF
> > > >>  check ovn-nbctl lsp-set-addresses S1-VIF "02:ac:10:01:00:02 unknown"
> > > >>  check ovn-nbctl --wait=sb sync
> > > >>  
> > > >> -AT_CHECK([ovn-sbctl lflow-list S1 | grep ls_in_l2_lkup | grep -q 
> > > >> 'match=(eth.mcast && (arp.op == 1 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)'], [1])
> > > >> +AT_CHECK([ovn-sbctl lflow-list S1 | grep ls_in_l2_lkup | grep -q 
> > > >> 'match=(eth.mcast && (arp.op == 1 || nd_ns)), action=(outport = 
> > > >> "_MC_unknown"; output;)'], [1])
> > > >>  
> > > >>  check ovn-nbctl --wait=sb set Logical_Switch S1 \
> > > >>      other_config:broadcast-arps-to-all-routers=false
> > > >>  
> > > >> -AT_CHECK([ovn-sbctl lflow-list S1 | grep ls_in_l2_lkup | grep -q 
> > > >> 'match=(eth.mcast && (arp.op == 1 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)'], [0], [], [ignore])
> > > >> +AT_CHECK([ovn-sbctl lflow-list S1 | grep ls_in_l2_lkup | grep -q 
> > > >> 'match=(eth.mcast && (arp.op == 1 || nd_ns)), action=(outport = 
> > > >> "_MC_unknown"; output;)'], [0], [], [ignore])
> > > >>  
> > > >>  check ovn-nbctl --wait=sb set Logical_Switch S1 \
> > > >>      other_config:broadcast-arps-to-all-routers=true
> > > >>  
> > > >> -AT_CHECK([ovn-sbctl lflow-list S1 | grep ls_in_l2_lkup | grep -q 
> > > >> 'match=(eth.mcast && (arp.op == 1 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)'], [1])
> > > >> +AT_CHECK([ovn-sbctl lflow-list S1 | grep ls_in_l2_lkup | grep -q 
> > > >> 'match=(eth.mcast && (arp.op == 1 || nd_ns)), action=(outport = 
> > > >> "_MC_unknown"; output;)'], [1])
> > > >>  
> > > >>  OVN_CLEANUP_NORTHD
> > > >>  AT_CLEANUP
> > > >> @@ -14356,11 +14392,15 @@ AT_CHECK([grep "ls_in_l2_lkup" publicflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:ff:02, 30:54:00:00:00:03} && eth.dst == ff:ff:ff:ff:ff:ff 
> > > >> && (arp.op == 1 || rarp.op == 3 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:ff02), action=(clone 
> > > >> {outport = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:ff02), action=(clone 
> > > >> {outport = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10 && arp.spa == 
> > > >> 172.168.0.10), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100 && arp.spa == 
> > > >> 172.168.0.100), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && arp.spa == 
> > > >> 172.168.0.110), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && arp.spa == 
> > > >> 172.168.0.120), action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  AT_CHECK([grep -Fe "172.168.0.110" -e "172.168.0.120" -e "10.0.0.3" 
> > > >> -e "20.0.0.3" -e "30:54:00:00:00:03"  -e "sw0-port1" lr0flows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >> @@ -14391,8 +14431,10 @@ AT_CHECK([grep -Fe "172.168.0.110" -e 
> > > >> "172.168.0.120" -e "10.0.0.3" -e "20.0.0.3
> > > >>  AT_CHECK([grep -Fe "172.168.0.110" -e "172.168.0.120" -e "10.0.0.3" 
> > > >> -e "20.0.0.3" -e "30:54:00:00:00:03"  -e "sw0-port1" publicflows | 
> > > >> ovn_strip_lflows | grep -v "reg0.*22"], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=50   , match=(eth.dst == 
> > > >> 30:54:00:00:00:03 && is_chassis_resident("sw0-port1")), 
> > > >> action=(outport = "public-lr0"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:ff:02, 30:54:00:00:00:03} && eth.dst == ff:ff:ff:ff:ff:ff 
> > > >> && (arp.op == 1 || rarp.op == 3 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && arp.spa == 
> > > >> 172.168.0.110), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && arp.spa == 
> > > >> 172.168.0.120), action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  }
> > > >>  
> > > >> @@ -14536,16 +14578,20 @@ AT_CHECK([grep "ls_in_l2_lkup" publicflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=71   , match=(eth.mcast && 
> > > >> ip), action=(outport = "_MC_flood_l2"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=72   , match=(eth.mcast && 
> > > >> (nd_na || nd_rs || nd_ra)), action=(outport = "_MC_flood"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:ff:02, 30:54:00:00:00:03} && eth.dst == ff:ff:ff:ff:ff:ff 
> > > >> && (arp.op == 1 || rarp.op == 3 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:ff02 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:ff02 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:ff02 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && nd_ns && nd.target == fe80::200:ff:fe00:ff02 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.10 && 
> > > >> is_chassis_resident("cr-public-lr0") && arp.spa == 172.168.0.10), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.100 && 
> > > >> is_chassis_resident("cr-public-lr0") && arp.spa == 172.168.0.100), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> is_chassis_resident("cr-public-lr0") && arp.spa == 172.168.0.110), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> is_chassis_resident("cr-public-lr0") && arp.spa == 172.168.0.120), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  AT_CHECK([grep -Fe "172.168.0.110" -e "172.168.0.120" -e "10.0.0.3" 
> > > >> -e "20.0.0.3" -e "30:54:00:00:00:03"  -e "sw0-port1" lr0flows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >> @@ -14570,10 +14616,12 @@ AT_CHECK([grep -Fe "172.168.0.110" -e 
> > > >> "172.168.0.120" -e "10.0.0.3" -e "20.0.0.3
> > > >>  AT_CHECK([grep -Fe "172.168.0.110" -e "172.168.0.120" -e "10.0.0.3" 
> > > >> -e "20.0.0.3" -e "30:54:00:00:00:03"  -e "sw0-port1" publicflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=50   , match=(eth.dst == 
> > > >> 30:54:00:00:00:03 && is_chassis_resident("sw0-port1")), 
> > > >> action=(outport = "public-lr0"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:ff:02, 30:54:00:00:00:03} && eth.dst == ff:ff:ff:ff:ff:ff 
> > > >> && (arp.op == 1 || rarp.op == 3 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> !is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "cr-public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> is_chassis_resident("cr-public-lr0")), action=(clone {outport = 
> > > >> "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && 
> > > >> is_chassis_resident("cr-public-lr0") && arp.spa == 172.168.0.110), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && 
> > > >> is_chassis_resident("cr-public-lr0") && arp.spa == 172.168.0.120), 
> > > >> action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  }
> > > >>  
> > > >> @@ -14637,8 +14685,10 @@ AT_CHECK([grep -Fe "172.168.0.110" -e 
> > > >> "172.168.0.120" -e "10.0.0.3" -e "20.0.0.3
> > > >>  AT_CHECK([grep -Fe "172.168.0.110" -e "172.168.0.120" -e "10.0.0.3" 
> > > >> -e "20.0.0.3" -e "30:54:00:00:00:03"  -e "sw0-port1" publicflows | 
> > > >> ovn_strip_lflows], [0], [dnl
> > > >>    table=??(ls_in_l2_lkup      ), priority=50   , match=(eth.dst == 
> > > >> 30:54:00:00:00:03 && is_chassis_resident("sw0-port1")), 
> > > >> action=(outport = "public-lr0"; output;)
> > > >>    table=??(ls_in_l2_lkup      ), priority=75   , match=(eth.src == 
> > > >> {00:00:00:00:ff:02, 30:54:00:00:00:03} && eth.dst == ff:ff:ff:ff:ff:ff 
> > > >> && (arp.op == 1 || rarp.op == 3 || nd_ns)), action=(outport = 
> > > >> "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> -  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=80   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120), action=(clone {outport 
> > > >> = "public-lr0"; output; }; outport = "_MC_unknown"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.110 && arp.spa == 
> > > >> 172.168.0.110), action=(outport = "_MC_flood_l2"; output;)
> > > >> +  table=??(ls_in_l2_lkup      ), priority=90   , match=(flags[[1]] == 
> > > >> 0 && arp.op == 1 && arp.tpa == 172.168.0.120 && arp.spa == 
> > > >> 172.168.0.120), action=(outport = "_MC_flood_l2"; output;)
> > > >>  ])
> > > >>  
> > > >>  OVN_CLEANUP_NORTHD
> > > >> diff --git a/tests/ovn.at b/tests/ovn.at
> > > >> index c0ae611bc..e0ab6fa0b 100644
> > > >> --- a/tests/ovn.at
> > > >> +++ b/tests/ovn.at
> > > >> @@ -5192,7 +5192,7 @@ test_ip() {
> > > >>  # SPA and TPA are each 8 hex digits.
> > > >>  test_arp() {
> > > >>      echo "$@"
> > > >> -    local inport=$1 sha=$2 spa=$3 tpa=$4 reply_ha=$5
> > > >> +    local inport=$1 sha=$2 spa=$3 tpa=$4 rip=$5 reply_ha=$6
> > > >>      local request=$(fmt_pkt "Ether(dst='ff:ff:ff:ff:ff:ff', 
> > > >> src='${sha}')/ \
> > > >>                               ARP(hwsrc='${sha}', 
> > > >> hwdst='ff:ff:ff:ff:ff:ff', psrc='${spa}', pdst='${tpa}')")
> > > >>      hv=hv`vif_to_hv $inport`
> > > >> @@ -5206,9 +5206,19 @@ test_arp() {
> > > >>          for k in 1 2 3; do
> > > >>              # 192.168.33.254 is configured to the switch patch port 
> > > >> for lrp33,
> > > >>              # so no ARP flooding expected for it.
> > > >> -            if test $i$j$k != $inport && test $tpa != 192.168.33.254; 
> > > >> then
> > > >> -                echo $request >> $i$j$k.expected
> > > >> +            if test $i$j$k = $inport; then
> > > >> +                continue
> > > >> +            fi
> > > >> +
> > > >> +            if test $tpa = 192.168.33.254; then
> > > >> +                continue
> > > >>              fi
> > > >> +
> > > >> +            if test $rip = $tpa && test $j$k != 11; then
> > > >> +                continue
> > > >> +            fi
> > > >> +
> > > >> +            echo $request >> $i$j$k.expected
> > > >>          done
> > > >>      done
> > > >>  
> > > >> @@ -5348,9 +5358,9 @@ for i in 1 2 3; do
> > > >>        otherip=192.168.$i$j.55 # Some other IP in subnet
> > > >>        externalip=1.2.3.4      # Some other IP not in subnet
> > > >>  
> > > >> -      test_arp $i$j$k $smac $sip        $rip        $rmac      #4
> > > >> -      test_arp $i$j$k $smac $otherip    $rip        $rmac      #5
> > > >> -      test_arp $i$j$k $smac $sip        $otherip               #6
> > > >> +      test_arp $i$j$k $smac $sip        $rip        $rip    $rmac #4
> > > >> +      test_arp $i$j$k $smac $otherip    $rip        $rip    $rmac #5
> > > >> +      test_arp $i$j$k $smac $sip        $otherip    $rip          #6
> > > >>  
> > > >>        # When rip is 192.168.33.254, ARP request from externalip won't 
> > > >> be
> > > >>        # filtered, because 192.168.33.254 is configured to switch peer 
> > > >> port
> > > >> @@ -5359,9 +5369,9 @@ for i in 1 2 3; do
> > > >>        if test $i = 3 && test $j = 3; then
> > > >>          lrp33_rsp=$rmac
> > > >>        fi
> > > >> -      test_arp $i$j$k $smac $externalip $rip        $lrp33_rsp #7
> > > >> +      test_arp $i$j$k $smac $externalip $rip $rip $lrp33_rsp #7
> > > >>  
> > > >> -      # MAC binding should be learned from ARP request.
> > > >> +      ## MAC binding should be learned from ARP request.
> > > >>        echo lrp$i$j,$sip,$smac >> mac_bindings.expected
> > > >>  
> > > >>        # mac_binding is learned and overwritten so only the last one 
> > > >> remains.
> > > >> @@ -27702,18 +27712,6 @@ for var in sw_dp_uuid sw_dp_key sw1_dp_key 
> > > >> r1_dp_key r1_tnl_key r2_tnl_key \
> > > >>     echo "$var=$value"
> > > >>  done
> > > >>  
> > > >> -as hv1
> > > >> -AT_CAPTURE_FILE([offlows])
> > > >> -OVS_WAIT_FOR_OUTPUT([
> > > >> -    ovs-ofctl dump-flows br-int > offlows
> > > >> -    for match in "$match_send_rtr1" "$match_send_rtr2"; do
> > > >> -        grep -E "$match_arp_req.*$match" offlows | grep -c 
> > > >> 'n_packets=[[1-9]]'
> > > >> -    done
> > > >> -    :
> > > >> -], [0], [1
> > > >> -0
> > > >> -])
> > > >> -
> > > >>  # Inject ND_NS for ofirst router owned IP address.
> > > >>  src_ipv6=00100000000000000000000000000254
> > > >>  dst_ipv6=00100000000000000000000000000001
> > > >> -- 
> > > >> 2.53.0
> > > >>
> > > 
> > > Regards,
> > > Dumitru
> > > 
> 
> 


_______________________________________________
dev mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-dev

Reply via email to