On 7/3/26 4:42 PM, Lorenzo Bianconi via dev wrote:
> On Jun 25, Lucas Vargas Dias wrote:
>> If logical router has more than one LRP as gateway router port
>> and dynamic routing configured, dynamic-routing-port-name could be
>> used to specify the LRP that will be used to dynamic routing.
>> However, if all LRPs learn routes, routes from LRP without
>> dynamic-routing-port-name must be flushed.
>> This happens when LRPs are scheduled in the same chassis.
>>
>> Signed-off-by: Lucas Vargas Dias <[email protected]>
>> ---

Hi Lucas, Lorenzo,

Thanks for the patch and review!

>>  controller/ovn-controller.c      |  15 ++++
>>  controller/route-exchange.c      |  61 ++++++++++++-
>>  controller/route-exchange.h      |   1 +
>>  tests/multinode.at               | 142 +++++++++++++++++++++++++++++++
>>  tests/ovn-inc-proc-graph-dump.at |   2 +
>>  tests/system-ovn.at              | 133 +++++++++++++++++++++++++++++
>>  6 files changed, 350 insertions(+), 4 deletions(-)
>>
>> diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
>> index fd848c54c..e65962d9f 100644
>> --- a/controller/ovn-controller.c
>> +++ b/controller/ovn-controller.c
>> @@ -5681,11 +5681,24 @@ en_route_exchange_run(struct engine_node *node, void 
>> *data)
>>      }
>>  
>>      vector_clear(&rt_notify->watches);
>> +    const struct ovsrec_open_vswitch_table *ovs_table =
>> +        EN_OVSDB_GET(engine_get_input("OVS_open_vswitch", node));
>> +    const char *chassis_id = get_ovs_chassis_id(ovs_table);
>> +    ovs_assert(chassis_id);
>> +
>> +    struct ovsdb_idl_index *sbrec_chassis_by_name =
>> +        engine_ovsdb_node_get_index(
>> +                engine_get_input("SB_chassis", node),
>> +                "name");
>> +    const struct sbrec_chassis *chassis
>> +        = chassis_lookup_by_name(sbrec_chassis_by_name, chassis_id);
>> +    ovs_assert(chassis);
>>  
>>      struct route_exchange_ctx_in r_ctx_in = {
>>          .ovnsb_idl_txn = engine_get_context()->ovnsb_idl_txn,
>>          .sbrec_learned_route_by_datapath = sbrec_learned_route_by_datapath,
>>          .sbrec_port_binding_by_name = sbrec_port_binding_by_name,
>> +        .chassis = chassis,
>>          .announce_routes = &route_data->announce_routes,
>>      };
>>      struct route_exchange_ctx_out r_ctx_out = {
>> @@ -7003,6 +7016,8 @@ inc_proc_ovn_controller_init(
>>      engine_add_input(&en_route, &en_sb_datapath_binding,
>>                       route_sb_datapath_binding_handler);
>>  
>> +    engine_add_input(&en_route_exchange, &en_ovs_open_vswitch, NULL);
>> +    engine_add_input(&en_route_exchange, &en_sb_chassis, NULL);
>>      engine_add_input(&en_route_exchange, &en_route, NULL);
>>      engine_add_input(&en_route_exchange, &en_sb_learned_route,
>>                       engine_noop_handler);
>> diff --git a/controller/route-exchange.c b/controller/route-exchange.c
>> index b86eb43bf..11e5aa39b 100644
>> --- a/controller/route-exchange.c
>> +++ b/controller/route-exchange.c
>> @@ -86,7 +86,7 @@ maintained_route_table_add(uint32_t table_id)
>>      hmap_insert(&_maintained_route_tables, &mrt->node, hash);
>>  }
>>  
>> -static void
>> +static struct route_entry *
>>  route_add_entry(struct hmap *routes,
>>                  const struct sbrec_learned_route *sb_route,
>>                  bool stale)
>> @@ -102,6 +102,7 @@ route_add_entry(struct hmap *routes,
>>      hash = hash_string(sb_route->ip_prefix, hash);
>>  
>>      hmap_insert(routes, &route_e->hmap_node, hash);
>> +    return route_e;
>>  }
>>  
>>  static struct route_entry *
>> @@ -144,17 +145,36 @@ sb_sync_learned_routes(const struct vector 
>> *learned_routes,
>>                         struct ovsdb_idl_txn *ovnsb_idl_txn,
>>                         struct ovsdb_idl_index *sbrec_port_binding_by_name,
>>                         struct ovsdb_idl_index 
>> *sbrec_learned_route_by_datapath,
>> -                       bool *sb_changes_pending)
>> +                       bool *sb_changes_pending,
>> +                       const struct sbrec_chassis *chassis)
>>  {
>>      struct hmap sync_routes = HMAP_INITIALIZER(&sync_routes);
>>      const struct sbrec_learned_route *sb_route;
>> -    struct route_entry *route_e;
>> +    struct route_entry *route_e = NULL;
>> +    struct hmapx lrp_with_dr_port_name =
>> +        HMAPX_INITIALIZER(&lrp_with_dr_port_name);
>>  
>>      struct sbrec_learned_route *filter =
>>          sbrec_learned_route_index_init_row(sbrec_learned_route_by_datapath);
>>      sbrec_learned_route_index_set_datapath(filter, datapath);
>>      SBREC_LEARNED_ROUTE_FOR_EACH_EQUAL (sb_route, filter,
>>                                          sbrec_learned_route_by_datapath) {
>> +        const struct sbrec_port_binding *cr_pb =
>> +            lport_get_cr_port(sbrec_port_binding_by_name,
>> +                              sb_route->logical_port, NULL);
>> +
>> +        /* Collect the set of unique logical ports we learned routes on. The
>> +         * (potentially expensive) dynamic-routing-port-name lookups are
>> +         * postponed until after the loop so that they are performed once 
>> per
>> +         * logical port instead of once per learned route. */
>> +        hmapx_add(&lrp_with_dr_port_name,
>> +                  CONST_CAST(void *, sb_route->logical_port));
>> +
>> +        if (sb_route->logical_port->chassis == chassis ||
>> +            (cr_pb && cr_pb->chassis == chassis)) {
>> +            route_e = route_add_entry(&sync_routes, sb_route, false);
>> +        }
>> +
>>          /* If the port is not local we don't care about it.
>>           * Some other ovn-controller will handle it.
>>           * We may not use smap_get since the value might be validly NULL. */
>> @@ -162,10 +182,42 @@ sb_sync_learned_routes(const struct vector 
>> *learned_routes,
>>                             sb_route->logical_port->logical_port)) {
>>              continue;
>>          }
>> +        if (route_e) {
>> +            route_e->stale = true;
>> +            continue;
>> +        }
> 
> route_e is not reset to NULL between loop iterations so it leaks into 
> subsequent iterations
> and causes routes to be silently skipped. Am I missing something?
> 

I agree, it's something I kind of flagged in v2 as well.  I mentioned
there we should make route_e a local variable inside the loop to reduce
its scope:

> +
> +        if (sb_route->logical_port->chassis == chassis ||
> +            (cr_pb && cr_pb->chassis == chassis)) {
> +            route_e = route_add_entry(&sync_routes, sb_route, false);
> +            if (dynamic_routing_port_name) {
> +                uuidset_insert(&lrp_with_dr_port_name,
> +                               &sb_route->logical_port->header_.uuid);
> +            }
> +        }

If we didn't match the condition above in the current iteration but we
matched it in the previous one then route_e here is non-NULL (pointing
to the route entry we added in the previous iteration.

We'll incorrectly mark it as stale below potentially.

We should make 'route_e' a local variable of the
SBREC_LEARNED_ROUTE_FOR_EACH_EQUAL() loop.

> Regards,
> Lorenzo
> 
>>          route_add_entry(&sync_routes, sb_route, true);
>>      }
>>      sbrec_learned_route_index_destroy_row(filter);
>>  
>> +    /* Drop the logical ports that don't have a dynamic-routing-port-name 
>> set,
>> +     * either directly or via their distributed gateway port. */
>> +    struct hmapx_node *lrp_node;
>> +    HMAPX_FOR_EACH_SAFE (lrp_node, &lrp_with_dr_port_name) {
>> +        const struct sbrec_port_binding *lrp = lrp_node->data;
>> +        const struct sbrec_port_binding *cr_pb =
>> +            lport_get_cr_port(sbrec_port_binding_by_name, lrp, NULL);
>> +        const char *dynamic_routing_port_name =
>> +            smap_get(&lrp->options, "dynamic-routing-port-name");
>> +        if (!dynamic_routing_port_name && cr_pb) {
>> +            dynamic_routing_port_name =
>> +                smap_get(&cr_pb->options, "dynamic-routing-port-name");
>> +        }
>> +        if (!dynamic_routing_port_name) {
>> +            hmapx_delete(&lrp_with_dr_port_name, lrp_node);
>> +        }
>> +    }
>> +
>> +    if (!hmapx_is_empty(&lrp_with_dr_port_name)) {
>> +        HMAP_FOR_EACH (route_e, hmap_node, &sync_routes) {
>> +            if (!hmapx_contains(&lrp_with_dr_port_name,
>> +                                route_e->sb_route->logical_port)) {
>> +                route_e->stale = true;
>> +            }
>> +        }
>> +    }
>> +    hmapx_destroy(&lrp_with_dr_port_name);
>> +
>>      struct re_nl_received_route_node *learned_route;
>>      VECTOR_FOR_EACH_PTR (learned_routes, learned_route) {
>>          char *ip_prefix = normalize_v46_prefix(&learned_route->prefix,
>> @@ -363,7 +415,8 @@ route_exchange_run(const struct route_exchange_ctx_in 
>> *r_ctx_in,
>>                                         r_ctx_in->ovnsb_idl_txn,
>>                                         r_ctx_in->sbrec_port_binding_by_name,
>>                                         sbrec_learned_route_by_datapath,
>> -                                       &r_ctx_out->sb_changes_pending);
>> +                                       &r_ctx_out->sb_changes_pending,
>> +                                       r_ctx_in->chassis);
>>              }
>>              vector_push(r_ctx_out->route_table_watches, &arte->table_id);
>>              vector_destroy(&received_routes);
>> diff --git a/controller/route-exchange.h b/controller/route-exchange.h
>> index 25db35568..a1ef4a359 100644
>> --- a/controller/route-exchange.h
>> +++ b/controller/route-exchange.h
>> @@ -24,6 +24,7 @@ struct route_exchange_ctx_in {
>>      struct ovsdb_idl_txn *ovnsb_idl_txn;
>>      struct ovsdb_idl_index *sbrec_port_binding_by_name;
>>      struct ovsdb_idl_index *sbrec_learned_route_by_datapath;
>> +    const struct sbrec_chassis *chassis;
>>  
>>      /* Contains struct advertise_datapath_entry */
>>      const struct hmap *announce_routes;
>> diff --git a/tests/multinode.at b/tests/multinode.at
>> index 069f2a677..e5be00be7 100644
>> --- a/tests/multinode.at
>> +++ b/tests/multinode.at
>> @@ -2984,6 +2984,148 @@ OVS_WAIT_UNTIL([m_as ovn-gw-2 ip netns exec frr-ns 
>> ping -W 1 -c 1 172.16.10.2])
>>  
>>  AT_CLEANUP
>>  
>> +AT_SETUP([ovn multinode dynamic-routing - BGP learned routes with router 
>> filter name and multiple DGPs])
>> +
>> +# This is the multinode counterpart of the system test
>> +# "dynamic-routing - BGP learned routes with router filter name and multiple
>> +# DGPs": a single logical router with dynamic routing enabled has two
>> +# distributed gateway ports scheduled on different chassis.  Both LRPs are 
>> used
>> +# for dynamic routing and each has its own dynamic-routing-port-name filter
>> +# resolving to the interface local to the chassis hosting the port.
>> +#
>> +# Each chassis learns a route for the same prefix from its own VRF, so both
>> +# gateway ports learn it.  Because every LRP has a dynamic-routing-port-name
>> +# that resolves to a local interface, neither route is flushed: the route
>> +# learned on ovn-gw-1 (lrp-local-bgp-port) and the route learned on ovn-gw-2
>> +# (lrp-dgp-dummy) both remain.
>> +#
>> +# Topology:
>> +#
>> +#   public                              ls-dummy
>> +#   (local-bgp-port, ovn-gw-1)          (ovn-gw-2)
>> +#        |                                   |
>> +#   lrp-local-bgp-port                  lrp-dgp-dummy
>> +#   (DGP @ ovn-gw-1,                    (DGP @ ovn-gw-2,
>> +#    port-name local-bgp-port)           port-name dummy-bgp-port)
>> +#        \                                  /
>> +#         +------------- lr-frr -----------+
>> +#          (dynamic-routing, vrf-id $vrf)
>> +
>> +# Check that ovn-fake-multinode setup is up and running.
>> +check_fake_multinode_setup
>> +
>> +CHECK_VRF()
>> +
>> +# Delete the multinode NB and OVS resources before starting the test.
>> +cleanup_multinode_resources
>> +
>> +CHECK_VRF()
>> +
>> +vrf=1000
>> +
>> +# Create the VRF manually on both gateway chassis 
>> (dynamic-routing-maintain-vrf
>> +# is false, so OVN does not create it) and learn/read routes from table 
>> $vrf.
>> +for gw in ovn-gw-1 ovn-gw-2; do
>> +    check m_as $gw ip link add vrf-bgp type vrf table $vrf
>> +    on_exit "m_as $gw ip link del vrf-bgp"
>> +    check m_as $gw ip link set vrf-bgp up
>> +done
>> +
>> +# Create the logical router with dynamic routing in VRF $vrf.
>> +check multinode_nbctl lr-add lr-frr
>> +check multinode_nbctl set Logical_Router lr-frr   \
>> +    options:dynamic-routing=true                  \
>> +    options:dynamic-routing-vrf-id=$vrf           \
>> +    options:dynamic-routing-redistribute=static
>> +
>> +# The DGP that is used for dynamic routing, scheduled on ovn-gw-1.
>> +check multinode_nbctl lrp-add lr-frr lrp-local-bgp-port 00:00:00:00:00:03 
>> 20.0.0.3/24 \
>> +    -- set Logical_Router_Port lrp-local-bgp-port \
>> +        options:dynamic-routing-maintain-vrf=false \
>> +    -- set Logical_Router_Port lrp-local-bgp-port \
>> +        options:routing-protocol-redirect=local-bgp-port
>> +check multinode_nbctl lrp-set-gateway-chassis lrp-local-bgp-port ovn-gw-1
>> +
>> +check multinode_nbctl ls-add public
>> +check multinode_nbctl lsp-add-router-port public public-lr-frr 
>> lrp-local-bgp-port
>> +check multinode_nbctl lsp-add public local-bgp-port \
>> +    -- lsp-set-addresses local-bgp-port unknown
>> +
>> +# The second DGP used for dynamic routing, scheduled on ovn-gw-2.  
>> bgp-dummy is
>> +# not an OVN logical port, so the dynamic-routing-port-name filter is 
>> resolved
>> +# through the dynamic-routing-port-mapping configured on ovn-gw-2 below.
>> +check multinode_nbctl lrp-add lr-frr lrp-dgp-dummy 00:00:00:00:00:04 
>> 20.0.1.3/24 \
>> +    -- set Logical_Router_Port lrp-dgp-dummy \
>> +        options:dynamic-routing-maintain-vrf=false
>> +check multinode_nbctl lrp-set-gateway-chassis lrp-dgp-dummy ovn-gw-2
>> +
>> +check multinode_nbctl ls-add ls-dummy
>> +check multinode_nbctl lsp-add-router-port ls-dummy lsp-dummy lrp-dgp-dummy
>> +
>> +check multinode_nbctl --wait=hv sync
>> +
>> +# Bind local-bgp-port on ovn-gw-1 and move its interface into the VRF.  The
>> +# dynamic-routing-port-name filter will be resolved to this interface name.
>> +check m_as ovn-gw-1 ovs-vsctl add-port br-int local-bgp-port \
>> +    -- set Interface local-bgp-port type=internal            \
>> +    -- set Interface local-bgp-port external_ids:iface-id=local-bgp-port
>> +on_exit "m_as ovn-gw-1 ovs-vsctl del-port br-int local-bgp-port"
>> +check m_as ovn-gw-1 ip link set local-bgp-port master vrf-bgp
>> +check m_as ovn-gw-1 ip link set local-bgp-port address 00:00:00:00:00:03
>> +check m_as ovn-gw-1 ip addr add dev local-bgp-port 20.0.0.3/24
>> +check m_as ovn-gw-1 ip link set local-bgp-port up
>> +
>> +# ovn-gw-2 hosts lrp-dgp-dummy.  Add an interface to its VRF so a route can 
>> be
>> +# present in the VRF table and get learned on this gateway port, and map the
>> +# dynamic-routing-port-name (dummy-bgp-port) to this interface so the filter
>> +# resolves locally on ovn-gw-2.
>> +check m_as ovn-gw-2 ip link add bgp-dummy type dummy
>> +on_exit "m_as ovn-gw-2 ip link del bgp-dummy"
>> +check m_as ovn-gw-2 ip link set bgp-dummy master vrf-bgp
>> +check m_as ovn-gw-2 ip addr add dev bgp-dummy 20.0.1.3/24
>> +check m_as ovn-gw-2 ip link set bgp-dummy up
>> +
>> +check m_as ovn-gw-2 ovs-vsctl set open . \
>> +    external-ids:dynamic-routing-port-mapping="dummy-bgp-port=bgp-dummy"
>> +on_exit "m_as ovn-gw-2 ovs-vsctl remove open . external-ids 
>> dynamic-routing-port-mapping"
>> +
>> +m_wait_for_ports_up
>> +check multinode_nbctl --wait=hv sync
>> +
>> +# Both gateway ports are flagged for dynamic routing.
>> +m_check_row_count Port_Binding 1 logical_port=cr-lrp-local-bgp-port 
>> 'options:dynamic-routing=true'
>> +m_check_row_count Port_Binding 1 logical_port=cr-lrp-dgp-dummy 
>> 'options:dynamic-routing=true'
>> +
>> +# Simulate a route learned via a dynamic routing protocol in each chassis' 
>> VRF
>> +# for the same prefix.
>> +check m_as ovn-gw-1 ip route add 10.10.3.0/24 via 20.0.0.25 vrf vrf-bgp 
>> proto bgp
>> +check m_as ovn-gw-2 ip route add 10.10.3.0/24 via 20.0.1.25 vrf vrf-bgp 
>> proto bgp
>> +
>> +# Each chassis learns the route on its own gateway port, so there are two
>> +# Learned_Route rows for the prefix.
>> +m_wait_row_count Learned_Route 2 ip_prefix=10.10.3.0/24
>> +
>> +# Configure a dynamic-routing-port-name filter on both LRPs, each resolving 
>> to
>> +# the interface local to the chassis hosting the port: lrp-local-bgp-port ->
>> +# local-bgp-port (ovn-gw-1) and lrp-dgp-dummy -> dummy-bgp-port (ovn-gw-2, 
>> via
>> +# the port-mapping configured above).
>> +check multinode_nbctl set Logical_Router_Port lrp-local-bgp-port \
>> +    options:dynamic-routing-port-name=local-bgp-port
>> +check multinode_nbctl --wait=hv set Logical_Router_Port lrp-dgp-dummy \
>> +    options:dynamic-routing-port-name=dummy-bgp-port
>> +
>> +local_lp=$(m_fetch_column port_binding _uuid 
>> logical_port=lrp-local-bgp-port)
>> +dummy_lp=$(m_fetch_column port_binding _uuid logical_port=lrp-dgp-dummy)
>> +
>> +# Both filters resolve to a local interface, so no route is flushed: the 
>> route
>> +# learned on ovn-gw-1 (lrp-local-bgp-port) and the route learned on ovn-gw-2
>> +# (lrp-dgp-dummy) both remain.
>> +m_wait_row_count Learned_Route 2 ip_prefix=10.10.3.0/24
>> +m_wait_row_count Learned_Route 1 ip_prefix=10.10.3.0/24 
>> logical_port=$local_lp
>> +m_wait_row_count Learned_Route 1 ip_prefix=10.10.3.0/24 
>> logical_port=$dummy_lp
>> +
>> +AT_CLEANUP
>> +
>>  AT_SETUP([HA: Check for missing garp on leader when BFD goes back up])
>>  # Network topology
>>  #    
>> ┌────────────────────────────────────────────────────────────────────────────────────────────────────────┐
>> diff --git a/tests/ovn-inc-proc-graph-dump.at 
>> b/tests/ovn-inc-proc-graph-dump.at
>> index 3750339d0..4fe39cf69 100644
>> --- a/tests/ovn-inc-proc-graph-dump.at
>> +++ b/tests/ovn-inc-proc-graph-dump.at
>> @@ -461,6 +461,8 @@ digraph "Incremental-Processing-Engine" {
>>      route_table_notify [[style=filled, shape=box, fillcolor=white, 
>> label="route_table_notify"]];
>>      route_exchange_status [[style=filled, shape=box, fillcolor=white, 
>> label="route_exchange_status"]];
>>      route_exchange [[style=filled, shape=box, fillcolor=white, 
>> label="route_exchange"]];
>> +    OVS_open_vswitch -> route_exchange [[label=""]];
>> +    SB_chassis -> route_exchange [[label=""]];
>>      route -> route_exchange [[label=""]];
>>      SB_learned_route -> route_exchange [[label="engine_noop_handler"]];
>>      SB_port_binding -> route_exchange [[label="engine_noop_handler"]];
>> diff --git a/tests/system-ovn.at b/tests/system-ovn.at
>> index 35df0ec2f..af2dc8a83 100644
>> --- a/tests/system-ovn.at
>> +++ b/tests/system-ovn.at
>> @@ -21865,3 +21865,136 @@ OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port 
>> patch-.*/d
>>  
>>  AT_CLEANUP
>>  ])
>> +
>> +OVN_FOR_EACH_NORTHD([
>> +AT_SETUP([dynamic-routing - BGP learned routes with router filter name and 
>> multiple DGPs])
>> +
>> +# This test validates that BGP learned routes work correctly:
>> +# 1. Routes added to the VRF appear in Learned_Route table
>> +# 2. Remove routes learned in LRPs in same hypervisor when configure 
>> dynamic-routing-port-name
>> +# 3. Keep learned route just in LRP with dynamic-routing-port-name 
>> configured.
>> +#
>> +# Topology:
>> +#    +---------+
>> +#    | public  |
>> +#    +----+----+
>> +#         |
>> +#    +----+---+     +---------------+
>> +#    | lr-frr |-----| lrp-dgp-dummy | (dynamic-routing-port-name NOT 
>> configured (hv1))
>> +#    +----+---+     +---------------+
>> +#         |
>> +#  +------+-----------+
>> +#  |lrp-local-bgp-port| (dynamic-routing-port-name configured (hv1))
>> +#  +------------------+
>> +
>> +ovn_start
>> +OVS_TRAFFIC_VSWITCHD_START()
>> +ADD_BR([br-int])
>> +ADD_BR([br-ex])
>> +
>> +check ovs-ofctl add-flow br-ex action=normal
>> +
>> +# Set external-ids in br-int needed for ovn-controller
>> +check ovs-vsctl \
>> +    -- set Open_vSwitch . external-ids:system-id=hv1 \
>> +    -- set Open_vSwitch . 
>> external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
>> +    -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
>> +    -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
>> +    -- set bridge br-int fail-mode=secure other-config:disable-in-band=true
>> +
>> +# Configure bridge mappings for localnet.
>> +check ovs-vsctl set Open_vSwitch . 
>> external-ids:ovn-bridge-mappings=phys:br-ex
>> +
>> +vrf=10
>> +VRF_RESERVE([$vrf])
>> +
>> +# Start ovn-controller.
>> +start_daemon ovn-controller
>> +
>> +check ip link add vrf-$vrf type vrf table $vrf
>> +on_exit "ip link del vrf-$vrf"
>> +check ip link set vrf-$vrf up
>> +
>> +# Create public logical switch with localnet port.
>> +check ovn-nbctl ls-add public
>> +check ovn-nbctl lsp-add-localnet-port public ln_port phys
>> +
>> +# Create lr-frr with dynamic routing in VRF $vrf.
>> +check ovn-nbctl lr-add lr-frr \
>> +    -- set Logical_Router lr-frr \
>> +        options:dynamic-routing=true \
>> +        options:dynamic-routing-vrf-id=$vrf \
>> +        options:dynamic-routing-redistribute=static
>> +
>> +check ovn-nbctl lrp-add lr-frr lrp-local-bgp-port 00:00:00:00:00:03 
>> 20.0.0.3/24 \
>> +    -- set Logical_Router_Port lrp-local-bgp-port 
>> options:dynamic-routing-maintain-vrf=false \
>> +    -- set Logical_Router_Port lrp-local-bgp-port 
>> options:routing-protocol-redirect=local-bgp-port
>> +
>> +check ovn-nbctl lrp-set-gateway-chassis lrp-local-bgp-port hv1
>> +check ovn-nbctl lsp-add-router-port public public-lr-frr lrp-local-bgp-port
>> +
>> +check ovn-nbctl lrp-add lr-frr lrp-dgp-dummy 00:00:00:00:00:04 20.0.1.3/24
>> +check ovn-nbctl lrp-set-gateway-chassis lrp-dgp-dummy hv1
>> +check ovn-nbctl ls-add ls-dummy
>> +check ovn-nbctl lsp-add-router-port ls-dummy lsp-dummy lrp-dgp-dummy
>> +
>> +# Create local-bgp-port in VRF 10.
>> +check ovs-vsctl add-port br-int local-bgp-port \
>> +    -- set Interface local-bgp-port type=internal \
>> +    -- set Interface local-bgp-port external_ids:iface-id=local-bgp-port
>> +
>> +check ovn-nbctl lsp-add public local-bgp-port \
>> +    -- lsp-set-addresses local-bgp-port unknown
>> +
>> +# Configure local-bgp-port interface and add to VRF.
>> +check ip link set local-bgp-port master vrf-$vrf
>> +check ip link set local-bgp-port address 00:00:00:00:00:03
>> +check ip addr add dev local-bgp-port 20.0.0.3/24
>> +check ip link set local-bgp-port up
>> +
>> +# Wait for everything to be ready.
>> +wait_for_ports_up
>> +check ovn-nbctl --wait=hv sync
>> +
>> +# Check lrp-local-bgp-port has dynamic-routing option set.
>> +check_row_count Port_Binding 1 logical_port=cr-lrp-local-bgp-port 
>> 'options:dynamic-routing=true'
>> +check_row_count Port_Binding 1 logical_port=cr-lrp-dgp-dummy 
>> 'options:dynamic-routing=true'
>> +
>> +# Add static routes.
>> +check ovn-nbctl lr-route-add lr-frr 10.10.2.1 20.0.0.42 lrp-local-bgp-port
>> +
>> +# Verify advertised routes exist.
>> +AS_BOX([Advertised_Route])
>> +wait_row_count Advertised_Route 1 ip_prefix=10.10.2.1
>> +
>> +# Add a route to the VRF (simulating BGP learning a route).
>> +check ip route add 10.10.3.1 via 20.0.0.25 vrf vrf-$vrf proto zebra
>> +
>> +# Verify learned route appears in SB database.
>> +check_row_count Learned_Route 2 ip_prefix=10.10.3.1
>> +
>> +check ovn-nbctl --wait=hv set Logical_Router_Port lrp-local-bgp-port 
>> options:dynamic-routing-port-name=local-bgp-port
>> +lp=$(fetch_column port_binding _uuid logical_port=lrp-local-bgp-port)
>> +
>> +check_row_count Learned_Route 1 ip_prefix=10.10.3.1
>> +check_row_count Learned_Route 1 ip_prefix=10.10.3.1 logical_port=$lp
>> +
>> +check ovn-nbctl --wait=hv ls-del ls-dummy
>> +check ovn-nbctl --wait=hv ls-del public
>> +check ovn-nbctl --wait=hv lr-del lr-frr
>> +
>> +# Stop ovn-controller
>> +OVN_CLEANUP_CONTROLLER([hv1])
>> +check ovn-nbctl --wait=sb sync
>> +
>> +# Verify routes are removed in SB database.
>> +wait_row_count Learned_Route 0
>> +
>> +OVN_CLEANUP_NORTHD
>> +
>> +as
>> +OVS_TRAFFIC_VSWITCHD_STOP(["/.*error receiving.*/d
>> +/failed to query port patch-.*/d
>> +/.*terminating with signal 15.*/d"])
>> +AT_CLEANUP
>> +])
>> -- 
>> 2.43.0
>>

Regards,
Dumitru

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