[ovs-dev] [PATCH ovn v4 3/7] controller: Add load balancer hairpin OF flows.

numans at ovn.org numans at ovn.org
Thu Nov 12 11:56:17 UTC 2020


From: Numan Siddique <numans at ovn.org>

Presently to handle the load balancer hairpin traffic (the traffic destined to the
load balancer VIP is dnatted to the backend which originated the traffic), ovn-northd
adds a lot of logical flows to check this scenario. This patch attempts to reduce the
these logical flows. Each ovn-controller will read the load balancers from
the newly added southbound Load_Balancer table and adds the load balancer hairpin OF
flows in the table 68, 69 and 70. If suppose a below load balancer is configured

10.0.0.10:80 = 10.0.0.4:8080, 10.0.0.5:8090, then the below flows are added

table=68, ip.src = 10.0.0.4,ip.dst=10.0.0.4,tcp.dst=8080 actions=load:1->NXM_NX_REG10[7]
table=68, ip.src = 10.0.0.5,ip.dst=10.0.0.5,tcp.dst=8090 actions=load:1->NXM_NX_REG10[7]
table=69, ip.src = 10.0.0.4,ip.dst=10.0.0.10,tcp.src=8080 actions=load:1->NXM_NX_REG10[7]
table=69, ip.src = 10.0.0.5,ip.dst=10.0.0.10,tcp.src=8090 actions=load:1->NXM_NX_REG10[7]
table=70, ct.trk && ct.dnat && ct.nw_dst == 10.0.0.10. actions=ct(commit, zone=reg12, nat(src=10.0.0.5))

Upcoming patch will add OVN actions which does the lookup in these tables to handle the
hairpin traffic.

Signed-off-by: Numan Siddique <numans at ovn.org>
---
 controller/lflow.c           | 231 +++++++++++++++++
 controller/lflow.h           |   6 +-
 controller/ovn-controller.c  |  27 +-
 include/ovn/logical-fields.h |   3 +
 tests/ovn.at                 | 469 +++++++++++++++++++++++++++++++++++
 5 files changed, 734 insertions(+), 2 deletions(-)

diff --git a/controller/lflow.c b/controller/lflow.c
index f631679c3f..30113295d9 100644
--- a/controller/lflow.c
+++ b/controller/lflow.c
@@ -26,6 +26,7 @@
 #include "ovn-controller.h"
 #include "ovn/actions.h"
 #include "ovn/expr.h"
+#include "lib/lb.h"
 #include "lib/ovn-l7.h"
 #include "lib/ovn-sb-idl.h"
 #include "lib/extend-table.h"
@@ -1138,6 +1139,191 @@ add_neighbor_flows(struct ovsdb_idl_index *sbrec_port_binding_by_name,
     }
 }
 
+static void
+add_lb_vip_hairpin_flows(struct ovn_controller_lb *lb,
+                         struct ovn_controller_lb_vip *lb_vip,
+                         struct ovn_controller_lb_vip_backend *lb_backend,
+                         uint8_t lb_proto,
+                         struct ovn_desired_flow_table *flow_table)
+{
+    uint64_t stub[1024 / 8];
+    struct ofpbuf ofpacts = OFPBUF_STUB_INITIALIZER(stub);
+
+    uint8_t value = 1;
+    put_load(&value, sizeof value, MFF_LOG_FLAGS,
+             MLF_LOOKUP_LB_HAIRPIN_BIT, 1, &ofpacts);
+
+    struct match hairpin_match = MATCH_CATCHALL_INITIALIZER;
+    struct match hairpin_reply_match = MATCH_CATCHALL_INITIALIZER;
+
+    if (lb_vip->addr_family == AF_INET) {
+        ovs_be32 ip4 = in6_addr_get_mapped_ipv4(&lb_backend->ip);
+
+        match_set_dl_type(&hairpin_match, htons(ETH_TYPE_IP));
+        match_set_nw_src(&hairpin_match, ip4);
+        match_set_nw_dst(&hairpin_match, ip4);
+
+        match_set_dl_type(&hairpin_reply_match,
+                          htons(ETH_TYPE_IP));
+        match_set_nw_src(&hairpin_reply_match, ip4);
+        match_set_nw_dst(&hairpin_reply_match,
+                         in6_addr_get_mapped_ipv4(&lb_vip->vip));
+    } else {
+        match_set_dl_type(&hairpin_match, htons(ETH_TYPE_IPV6));
+        match_set_ipv6_src(&hairpin_match, &lb_backend->ip);
+        match_set_ipv6_dst(&hairpin_match, &lb_backend->ip);
+
+        match_set_dl_type(&hairpin_reply_match,
+                          htons(ETH_TYPE_IPV6));
+        match_set_ipv6_src(&hairpin_reply_match, &lb_backend->ip);
+        match_set_ipv6_dst(&hairpin_reply_match, &lb_vip->vip);
+    }
+
+    if (lb_backend->port) {
+        match_set_nw_proto(&hairpin_match, lb_proto);
+        match_set_tp_dst(&hairpin_match, htons(lb_backend->port));
+
+        match_set_nw_proto(&hairpin_reply_match, lb_proto);
+        match_set_tp_src(&hairpin_reply_match,
+                            htons(lb_backend->port));
+    }
+
+    for (size_t i = 0; i < lb->slb->n_datapaths; i++) {
+        match_set_metadata(&hairpin_match,
+                           htonll(lb->slb->datapaths[i]->tunnel_key));
+        match_set_metadata(&hairpin_reply_match,
+                           htonll(lb->slb->datapaths[i]->tunnel_key));
+
+        ofctrl_add_flow(flow_table, OFTABLE_CHK_LB_HAIRPIN, 100,
+                        lb->slb->header_.uuid.parts[0], &hairpin_match,
+                        &ofpacts, &lb->slb->header_.uuid);
+
+        ofctrl_add_flow(flow_table, OFTABLE_CHK_LB_HAIRPIN_REPLY, 100,
+                        lb->slb->header_.uuid.parts[0],
+                        &hairpin_reply_match,
+                        &ofpacts, &lb->slb->header_.uuid);
+    }
+
+    ofpbuf_uninit(&ofpacts);
+}
+
+static void
+add_lb_ct_snat_vip_flows(struct ovn_controller_lb *lb,
+                         struct ovn_controller_lb_vip *lb_vip,
+                         struct ovn_desired_flow_table *flow_table)
+{
+    uint64_t stub[1024 / 8];
+    struct ofpbuf ofpacts = OFPBUF_STUB_INITIALIZER(stub);
+
+    struct ofpact_conntrack *ct = ofpact_put_CT(&ofpacts);
+    ct->recirc_table = NX_CT_RECIRC_NONE;
+    ct->zone_src.field = mf_from_id(MFF_LOG_SNAT_ZONE);
+    ct->zone_src.ofs = 0;
+    ct->zone_src.n_bits = 16;
+    ct->flags = NX_CT_F_COMMIT;
+    ct->alg = 0;
+
+    size_t nat_offset;
+    nat_offset = ofpacts.size;
+    ofpbuf_pull(&ofpacts, nat_offset);
+
+    struct ofpact_nat *nat = ofpact_put_NAT(&ofpacts);
+    nat->flags = NX_NAT_F_SRC;
+    nat->range_af = AF_UNSPEC;
+    if (lb_vip->addr_family == AF_INET) {
+        nat->range_af = AF_INET;
+        nat->range.addr.ipv4.min = in6_addr_get_mapped_ipv4(&lb_vip->vip);
+    } else {
+        nat->range_af = AF_INET6;
+        nat->range.addr.ipv6.min = lb_vip->vip;
+    }
+    ofpacts.header = ofpbuf_push_uninit(&ofpacts, nat_offset);
+    ofpact_finish(&ofpacts, &ct->ofpact);
+
+    struct match match = MATCH_CATCHALL_INITIALIZER;
+    if (lb_vip->addr_family == AF_INET) {
+        match_set_dl_type(&match, htons(ETH_TYPE_IP));
+        match_set_ct_nw_dst(&match, nat->range.addr.ipv4.min);
+    } else {
+        match_set_dl_type(&match, htons(ETH_TYPE_IPV6));
+        match_set_ct_ipv6_dst(&match, &lb_vip->vip);
+    }
+
+    uint32_t ct_state = OVS_CS_F_TRACKED | OVS_CS_F_DST_NAT;
+    match_set_ct_state_masked(&match, ct_state, ct_state);
+
+    for (size_t i = 0; i < lb->slb->n_datapaths; i++) {
+        match_set_metadata(&match,
+                           htonll(lb->slb->datapaths[i]->tunnel_key));
+
+        ofctrl_add_flow(flow_table, OFTABLE_CT_SNAT_FOR_VIP, 100,
+                        lb->slb->header_.uuid.parts[0],
+                        &match, &ofpacts, &lb->slb->header_.uuid);
+    }
+
+    ofpbuf_uninit(&ofpacts);
+}
+
+static void
+consider_lb_hairpin_flows(const struct sbrec_load_balancer *sbrec_lb,
+                          const struct hmap *local_datapaths,
+                          struct ovn_desired_flow_table *flow_table)
+{
+    /* Check if we need to add flows or not.  If there is one datapath
+     * in the local_datapaths, it means all the datapaths of the lb
+     * will be in the local_datapaths. */
+    size_t i;
+    for (i = 0; i < sbrec_lb->n_datapaths; i++) {
+        if (get_local_datapath(local_datapaths,
+                               sbrec_lb->datapaths[i]->tunnel_key)) {
+            break;
+        }
+    }
+
+    if (i == sbrec_lb->n_datapaths) {
+        return;
+    }
+
+    struct ovn_controller_lb *lb = ovn_controller_lb_create(sbrec_lb);
+    uint8_t lb_proto = IPPROTO_TCP;
+    if (lb->slb->protocol && lb->slb->protocol[0]) {
+        if (!strcmp(lb->slb->protocol, "udp")) {
+            lb_proto = IPPROTO_UDP;
+        } else if (!strcmp(lb->slb->protocol, "sctp")) {
+            lb_proto = IPPROTO_SCTP;
+        }
+    }
+
+    for (i = 0; i < lb->n_vips; i++) {
+        struct ovn_controller_lb_vip *lb_vip = &lb->vips[i];
+
+        for (size_t j = 0; j < lb_vip->n_backends; j++) {
+            struct ovn_controller_lb_vip_backend *lb_backend;
+
+            lb_backend = &lb_vip->backends[j];
+            add_lb_vip_hairpin_flows(lb, lb_vip, lb_backend, lb_proto,
+                                     flow_table);
+        }
+
+        add_lb_ct_snat_vip_flows(lb, lb_vip, flow_table);
+    }
+
+    ovn_controller_lb_destroy(lb);
+}
+
+/* Adds OpenFlow flows to flow tables for each Load balancer VIPs and
+ * backends to handle the load balanced hairpin traffic. */
+static void
+add_lb_hairpin_flows(const struct sbrec_load_balancer_table *lb_table,
+                     const struct hmap *local_datapaths,
+                     struct ovn_desired_flow_table *flow_table)
+{
+    const struct sbrec_load_balancer *lb;
+    SBREC_LOAD_BALANCER_TABLE_FOR_EACH (lb, lb_table) {
+        consider_lb_hairpin_flows(lb, local_datapaths, flow_table);
+    }
+}
+
 /* Handles neighbor changes in mac_binding table. */
 void
 lflow_handle_changed_neighbors(
@@ -1197,6 +1383,8 @@ lflow_run(struct lflow_ctx_in *l_ctx_in, struct lflow_ctx_out *l_ctx_out)
     add_neighbor_flows(l_ctx_in->sbrec_port_binding_by_name,
                        l_ctx_in->mac_binding_table, l_ctx_in->local_datapaths,
                        l_ctx_out->flow_table);
+    add_lb_hairpin_flows(l_ctx_in->lb_table, l_ctx_in->local_datapaths,
+                         l_ctx_out->flow_table);
 }
 
 void
@@ -1256,6 +1444,15 @@ lflow_add_flows_for_datapath(const struct sbrec_datapath_binding *dp,
     dhcp_opts_destroy(&dhcpv6_opts);
     nd_ra_opts_destroy(&nd_ra_opts);
     controller_event_opts_destroy(&controller_event_opts);
+
+    /* Add load balancer hairpin flows if the datapath has any load balancers
+     * associated. */
+    for (size_t i = 0; i < dp->n_load_balancers; i++) {
+        consider_lb_hairpin_flows(dp->load_balancers[i],
+                                  l_ctx_in->local_datapaths,
+                                  l_ctx_out->flow_table);
+    }
+
     return handled;
 }
 
@@ -1273,3 +1470,37 @@ lflow_handle_flows_for_lport(const struct sbrec_port_binding *pb,
     return lflow_handle_changed_ref(REF_TYPE_PORTBINDING, pb_ref_name,
                                     l_ctx_in, l_ctx_out, &changed);
 }
+
+bool
+lflow_handle_changed_lbs(struct lflow_ctx_in *l_ctx_in,
+                         struct lflow_ctx_out *l_ctx_out)
+{
+    const struct sbrec_load_balancer *lb;
+
+    SBREC_LOAD_BALANCER_TABLE_FOR_EACH_TRACKED (lb, l_ctx_in->lb_table) {
+        if (sbrec_load_balancer_is_deleted(lb)) {
+            VLOG_DBG("Remove hairpin flows for deleted load balancer "UUID_FMT,
+                     UUID_ARGS(&lb->header_.uuid));
+            ofctrl_remove_flows(l_ctx_out->flow_table, &lb->header_.uuid);
+        }
+    }
+
+    SBREC_LOAD_BALANCER_TABLE_FOR_EACH_TRACKED (lb, l_ctx_in->lb_table) {
+        if (sbrec_load_balancer_is_deleted(lb)) {
+            continue;
+        }
+
+        if (!sbrec_load_balancer_is_new(lb)) {
+            VLOG_DBG("Remove hairpin flows for updated load balancer "UUID_FMT,
+                     UUID_ARGS(&lb->header_.uuid));
+            ofctrl_remove_flows(l_ctx_out->flow_table, &lb->header_.uuid);
+        }
+
+        VLOG_DBG("Add load balancer hairpin flows for "UUID_FMT,
+                 UUID_ARGS(&lb->header_.uuid));
+        consider_lb_hairpin_flows(lb, l_ctx_in->local_datapaths,
+                                  l_ctx_out->flow_table);
+    }
+
+    return true;
+}
diff --git a/controller/lflow.h b/controller/lflow.h
index 1251fb0f45..1225131deb 100644
--- a/controller/lflow.h
+++ b/controller/lflow.h
@@ -68,6 +68,9 @@ struct uuid;
 #define OFTABLE_LOG_TO_PHY           65
 #define OFTABLE_MAC_BINDING          66
 #define OFTABLE_MAC_LOOKUP           67
+#define OFTABLE_CHK_LB_HAIRPIN       68
+#define OFTABLE_CHK_LB_HAIRPIN_REPLY 69
+#define OFTABLE_CT_SNAT_FOR_VIP      70
 
 /* The number of tables for the ingress and egress pipelines. */
 #define LOG_PIPELINE_LEN 24
@@ -132,6 +135,7 @@ struct lflow_ctx_in {
     const struct sbrec_logical_flow_table *logical_flow_table;
     const struct sbrec_multicast_group_table *mc_group_table;
     const struct sbrec_chassis *chassis;
+    const struct sbrec_load_balancer_table *lb_table;
     const struct hmap *local_datapaths;
     const struct shash *addr_sets;
     const struct shash *port_groups;
@@ -160,7 +164,7 @@ void lflow_handle_changed_neighbors(
     const struct sbrec_mac_binding_table *,
     const struct hmap *local_datapaths,
     struct ovn_desired_flow_table *);
-
+bool lflow_handle_changed_lbs(struct lflow_ctx_in *, struct lflow_ctx_out *);
 void lflow_destroy(void);
 
 void lflow_cache_init(struct hmap *);
diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
index a06cae3ccb..4150b4cb1c 100644
--- a/controller/ovn-controller.c
+++ b/controller/ovn-controller.c
@@ -790,7 +790,8 @@ ctrl_register_ovs_idl(struct ovsdb_idl *ovs_idl)
     SB_NODE(logical_flow, "logical_flow") \
     SB_NODE(dhcp_options, "dhcp_options") \
     SB_NODE(dhcpv6_options, "dhcpv6_options") \
-    SB_NODE(dns, "dns")
+    SB_NODE(dns, "dns") \
+    SB_NODE(load_balancer, "load_balancer")
 
 enum sb_engine_node {
 #define SB_NODE(NAME, NAME_STR) SB_##NAME,
@@ -1682,6 +1683,10 @@ static void init_lflow_ctx(struct engine_node *node,
         (struct sbrec_multicast_group_table *)EN_OVSDB_GET(
             engine_get_input("SB_multicast_group", node));
 
+    struct sbrec_load_balancer_table *lb_table =
+        (struct sbrec_load_balancer_table *)EN_OVSDB_GET(
+            engine_get_input("SB_load_balancer", node));
+
     const char *chassis_id = chassis_get_id();
     const struct sbrec_chassis *chassis = NULL;
     struct ovsdb_idl_index *sbrec_chassis_by_name =
@@ -1713,6 +1718,7 @@ static void init_lflow_ctx(struct engine_node *node,
     l_ctx_in->logical_flow_table = logical_flow_table;
     l_ctx_in->mc_group_table = multicast_group_table;
     l_ctx_in->chassis = chassis;
+    l_ctx_in->lb_table = lb_table;
     l_ctx_in->local_datapaths = &rt_data->local_datapaths;
     l_ctx_in->addr_sets = addr_sets;
     l_ctx_in->port_groups = port_groups;
@@ -2131,6 +2137,23 @@ flow_output_runtime_data_handler(struct engine_node *node,
     return true;
 }
 
+static bool
+flow_output_sb_load_balancer_handler(struct engine_node *node, void *data)
+{
+    struct ed_type_runtime_data *rt_data =
+        engine_get_input_data("runtime_data", node);
+
+    struct ed_type_flow_output *fo = data;
+    struct lflow_ctx_in l_ctx_in;
+    struct lflow_ctx_out l_ctx_out;
+    init_lflow_ctx(node, rt_data, fo, &l_ctx_in, &l_ctx_out);
+
+    bool handled = lflow_handle_changed_lbs(&l_ctx_in, &l_ctx_out);
+
+    engine_set_node_state(node, EN_UPDATED);
+    return handled;
+}
+
 struct ovn_controller_exit_args {
     bool *exiting;
     bool *restart;
@@ -2327,6 +2350,8 @@ main(int argc, char *argv[])
     engine_add_input(&en_flow_output, &en_sb_dhcp_options, NULL);
     engine_add_input(&en_flow_output, &en_sb_dhcpv6_options, NULL);
     engine_add_input(&en_flow_output, &en_sb_dns, NULL);
+    engine_add_input(&en_flow_output, &en_sb_load_balancer,
+                     flow_output_sb_load_balancer_handler);
 
     engine_add_input(&en_ct_zones, &en_ovs_open_vswitch, NULL);
     engine_add_input(&en_ct_zones, &en_ovs_bridge, NULL);
diff --git a/include/ovn/logical-fields.h b/include/ovn/logical-fields.h
index ac6f2f909b..0fe5bc3bb4 100644
--- a/include/ovn/logical-fields.h
+++ b/include/ovn/logical-fields.h
@@ -57,6 +57,7 @@ enum mff_log_flags_bits {
     MLF_LOCAL_ONLY_BIT = 4,
     MLF_NESTED_CONTAINER_BIT = 5,
     MLF_LOOKUP_MAC_BIT = 6,
+    MLF_LOOKUP_LB_HAIRPIN_BIT = 7,
 };
 
 /* MFF_LOG_FLAGS_REG flag assignments */
@@ -88,6 +89,8 @@ enum mff_log_flags {
 
     /* Indicate that the lookup in the mac binding table was successful. */
     MLF_LOOKUP_MAC = (1 << MLF_LOOKUP_MAC_BIT),
+
+    MLF_LOOKUP_LB_HAIRPIN = (1 << MLF_LOOKUP_LB_HAIRPIN_BIT),
 };
 
 /* OVN logical fields
diff --git a/tests/ovn.at b/tests/ovn.at
index 378d11921e..db2cb1b2f8 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -22686,3 +22686,472 @@ AT_CHECK([test "$encap_rec_mvtep" == "$encap_rec_mvtep1"], [0], [])
 
 OVN_CLEANUP([hv1])
 AT_CLEANUP
+
+AT_SETUP([ovn -- Load Balancer LS hairpin OF flows])
+ovn_start
+
+net_add n1
+
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.1
+ovs-vsctl -- add-port br-int hv1-vif1 -- \
+    set interface hv1-vif1 external-ids:iface-id=sw0-p1 \
+    options:tx_pcap=hv1/vif1-tx.pcap \
+    options:rxq_pcap=hv1/vif1-rx.pcap \
+    ofport-request=1
+ovs-vsctl -- add-port br-int hv1-vif2 -- \
+    set interface hv1-vif2 external-ids:iface-id=sw1-p1 \
+    options:tx_pcap=hv1/vif2-tx.pcap \
+    options:rxq_pcap=hv1/vif2-rx.pcap \
+    ofport-request=2
+
+sim_add hv2
+as hv2
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+ovs-vsctl -- add-port br-int hv2-vif1 -- \
+    set interface hv2-vif1 external-ids:iface-id=sw0-p2 \
+    options:tx_pcap=hv2/vif1-tx.pcap \
+    options:rxq_pcap=hv2/vif1-rx.pcap \
+    ofport-request=1
+ovs-vsctl -- add-port br-int hv1-vif2 -- \
+    set interface hv1-vif2 external-ids:iface-id=sw1-p2 \
+    options:tx_pcap=hv1/vif2-tx.pcap \
+    options:rxq_pcap=hv1/vif2-rx.pcap \
+    ofport-request=2
+
+check ovn-nbctl --wait=hv ls-add sw0
+check ovn-nbctl lsp-add sw0 sw0-p1 -- lsp-set-addresses sw0-p1 00:00:00:00:00:01
+
+check ovn-nbctl ls-add sw1
+check ovn-nbctl lsp-add sw1 sw1-p1 -- lsp-set-addresses sw1-p1 00:00:00:00:01:01
+
+OVS_WAIT_UNTIL([test x$(ovn-nbctl lsp-get-up sw0-p1) = xup])
+OVS_WAIT_UNTIL([test x$(ovn-nbctl lsp-get-up sw1-p1) = xup])
+
+check ovn-nbctl lb-add lb-ipv4-tcp 88.88.88.88:8080 42.42.42.1:4041 tcp
+check ovn-nbctl lb-add lb-ipv4-udp 88.88.88.88:4040 42.42.42.1:2021 udp
+check ovn-nbctl lb-add lb-ipv6-tcp [[8800::0088]]:8080 [[4200::1]]:4041 tcp
+check ovn-nbctl --wait=hv lb-add lb-ipv6-udp [[8800::0088]]:4040 [[4200::1]]:2021 udp
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+check ovn-nbctl --wait=hv ls-lb-add sw0 lb-ipv4-tcp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 1]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+check ovn-nbctl lb-add lb-ipv4-tcp 88.88.88.90:8080 42.42.42.42:4041,52.52.52.52:4042 tcp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 3]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70], [0], [dnl
+NXST_FLOW reply (xid=0x8):
+])
+
+check ovn-nbctl lsp-add sw0 sw0-p2
+# hv2 should bind sw0-p2 and it should install the LB hairpin flows.
+OVS_WAIT_UNTIL([test x$(ovn-nbctl lsp-get-up sw0-p2) = xup])
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 3]
+)
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+check ovn-nbctl --wait=hv ls-lb-add sw0 lb-ipv4-udp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 4]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 4]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8-], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+check ovn-nbctl --wait=hv ls-lb-add sw0 lb-ipv6-tcp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 5]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 5]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+check ovn-nbctl --wait=hv ls-lb-add sw0 lb-ipv6-udp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 6]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 6]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+check ovn-nbctl --wait=hv ls-lb-add sw1 lb-ipv6-udp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 7]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 7]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x2,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x2,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x2 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=42.42.42.42,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=52.52.52.52,tp_dst=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x2,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=42.42.42.42,nw_dst=88.88.88.90,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp,metadata=0x1,nw_src=52.52.52.52,nw_dst=88.88.88.90,tp_src=4042 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x2,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x2 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.90,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.90))
+])
+
+as hv2 ovs-vsctl del-port hv2-vif1
+OVS_WAIT_UNTIL([test x$(ovn-nbctl lsp-get-up sw0-p2) = xdown])
+
+# Trigger recompute on hv2 as sw0 will not be cleared from local_datapaths.
+as hv2 ovn-appctl -t ovn-controller recompute
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 7]
+)
+
+check ovn-nbctl --wait=hv lb-del lb-ipv4-tcp
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 4]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 0]
+)
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=42.42.42.1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x2,ipv6_src=4200::1,ipv6_dst=4200::1,tp_dst=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,tcp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=4041 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp,metadata=0x1,nw_src=42.42.42.1,nw_dst=88.88.88.88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x1,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+priority=100,udp6,metadata=0x2,ipv6_src=4200::1,ipv6_dst=8800::88,tp_src=2021 actions=load:0x1->NXM_NX_REG10[[7]]
+])
+
+AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | cut -d ' ' -f8- | sort], [0], [dnl
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_ipv6_dst=8800::88,ipv6,metadata=0x2 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=8800::88))
+priority=100,ct_state=+trk+dnat,ct_nw_dst=88.88.88.88,ip,metadata=0x1 actions=ct(commit,zone=NXM_NX_REG12[[0..15]],nat(src=88.88.88.88))
+])
+
+check ovn-nbctl --wait=hv ls-del sw0
+check ovn-nbctl --wait=hv ls-del sw1
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv1 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=68 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=69 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVS_WAIT_UNTIL(
+    [test $(as hv2 ovs-ofctl dump-flows br-int table=70 | grep -v NXST | wc -l) -eq 0]
+)
+
+OVN_CLEANUP([hv1], [hv2])
+AT_CLEANUP
-- 
2.28.0



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