diff --git a/controller/binding.c b/controller/binding.c
index d85a17730..eb8d580c8 100644
--- a/controller/binding.c
+++ b/controller/binding.c
@@ -894,7 +894,6 @@ local_binding_set_down(struct shash *local_bindings, const char *pb_name,
 
     if (!sb_readonly && b_lport && b_lport->pb->n_up && b_lport->pb->up[0] &&
             (!b_lport->pb->chassis || b_lport->pb->chassis == chassis_rec)) {
-        VLOG_INFO("Setting lport %s down in Southbound", pb_name);
         binding_lport_set_down(b_lport, sb_readonly);
         LIST_FOR_EACH (b_lport, list_node, &lbinding->binding_lports) {
             binding_lport_set_down(b_lport, sb_readonly);
@@ -3384,6 +3383,7 @@ binding_lport_set_down(struct binding_lport *b_lport, bool sb_readonly)
     if (sb_readonly || !b_lport || !b_lport->pb->n_up || !b_lport->pb->up[0]) {
         return;
     }
+    VLOG_INFO("Setting lport %s down in Southbound", b_lport->name);
 
     bool up = false;
     sbrec_port_binding_set_up(b_lport->pb, &up, 1);
diff --git a/controller/if-status.c b/controller/if-status.c
index c008aa79e..26535c9e8 100644
--- a/controller/if-status.c
+++ b/controller/if-status.c
@@ -16,6 +16,7 @@
 #include <config.h>
 
 #include "binding.h"
+#include "lport.h"
 #include "if-status.h"
 #include "ofctrl-seqno.h"
 #include "simap.h"
@@ -75,6 +76,9 @@ enum if_state {
     OIF_INSTALLED,       /* Interface flows programmed in OVS and binding
                           * marked "up" in the binding module.
                           */
+    OIF_UPDATE_PORT,     /* Logical ports need to be set down, and pb->chassis
+                          * removed.
+                          */
     OIF_MAX,
 };
 
@@ -85,6 +89,7 @@ static const char *if_state_names[] = {
     [OIF_MARK_UP]         = "MARK_UP",
     [OIF_MARK_DOWN]       = "MARK_DOWN",
     [OIF_INSTALLED]       = "INSTALLED",
+    [OIF_UPDATE_PORT]     = "UPDATE_PORT",
 };
 
 /*
@@ -264,6 +269,7 @@ if_status_mgr_claim_iface(struct if_status_mgr *mgr,
         break;
     case OIF_INSTALLED:
     case OIF_MARK_DOWN:
+    case OIF_UPDATE_PORT:
         ovs_iface_set_state(mgr, iface, OIF_CLAIMED);
         break;
     case OIF_MAX:
@@ -304,6 +310,7 @@ if_status_mgr_release_iface(struct if_status_mgr *mgr, const char *iface_id)
         ovs_iface_set_state(mgr, iface, OIF_MARK_DOWN);
         break;
     case OIF_MARK_DOWN:
+    case OIF_UPDATE_PORT:
         /* Nothing to do here. */
         break;
     case OIF_MAX:
@@ -336,6 +343,7 @@ if_status_mgr_delete_iface(struct if_status_mgr *mgr, const char *iface_id)
         ovs_iface_set_state(mgr, iface, OIF_MARK_DOWN);
         break;
     case OIF_MARK_DOWN:
+    case OIF_UPDATE_PORT:
         /* Nothing to do here. */
         break;
     case OIF_MAX:
@@ -344,6 +352,36 @@ if_status_mgr_delete_iface(struct if_status_mgr *mgr, const char *iface_id)
     }
 }
 
+void
+if_status_handle_lports(struct if_status_mgr *mgr,
+                      const struct sbrec_chassis *chassis_rec,
+                      struct ovsdb_idl_index *sbrec_port_binding_by_name,
+                      bool sb_readonly)
+{
+    if (sb_readonly) {
+        return;
+    }
+
+    struct hmapx_node *node;
+
+    HMAPX_FOR_EACH_SAFE (node, &mgr->ifaces_per_state[OIF_UPDATE_PORT]) {
+        struct ovs_iface *iface = node->data;
+        const struct sbrec_port_binding *pb = lport_lookup_by_name(
+            sbrec_port_binding_by_name, iface->id);
+
+        if ((pb == NULL) || sbrec_port_binding_is_deleted(pb)) {
+            VLOG_DBG("Removing lport %s from list of ports to set down",
+                     iface->id);
+        } else {
+            bool up = false;
+            sbrec_port_binding_set_up(pb, &up, 1);
+            VLOG_INFO("Setting lport %s down in Southbound", iface->id);
+            set_pb_chassis_in_sbrec(pb, chassis_rec, false);
+        }
+        ovs_iface_destroy(mgr, node->data);
+    }
+}
+
 bool
 if_status_handle_claims(struct if_status_mgr *mgr,
                         struct local_binding_data *binding_data,
@@ -424,6 +462,12 @@ if_status_mgr_update(struct if_status_mgr *mgr,
     HMAPX_FOR_EACH_SAFE (node, &mgr->ifaces_per_state[OIF_MARK_DOWN]) {
         struct ovs_iface *iface = node->data;
 
+        if (!local_binding_find(bindings, iface->id) && sb_readonly) {
+            VLOG_DBG("%s not found in local_bindings and sb read only => "
+                     "port down delayed", iface->id);
+            ovs_iface_set_state(mgr, iface, OIF_UPDATE_PORT);
+            continue;
+        }
         if (!sb_readonly) {
             local_binding_set_pb(bindings, iface->id, chassis_rec,
                                  NULL, false);
diff --git a/controller/if-status.h b/controller/if-status.h
index 5bd187a25..593597af7 100644
--- a/controller/if-status.h
+++ b/controller/if-status.h
@@ -48,5 +48,9 @@ bool if_status_handle_claims(struct if_status_mgr *mgr,
                              const struct sbrec_chassis *chassis_rec,
                              struct hmap *tracked_datapath,
                              bool sb_readonly);
+void if_status_handle_lports(struct if_status_mgr *mgr,
+                           const struct sbrec_chassis *chassis_rec,
+                           struct ovsdb_idl_index *sbrec_port_binding_by_name,
+                           bool sb_readonly);
 
 # endif /* controller/if-status.h */
diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
index 814a88117..4094eb56e 100644
--- a/controller/ovn-controller.c
+++ b/controller/ovn-controller.c
@@ -1603,6 +1603,11 @@ runtime_data_sb_ro_handler(struct engine_node *node, void *data)
                 engine_get_input("SB_chassis", node),
                 "name");
 
+    struct ovsdb_idl_index *sbrec_port_binding_by_name =
+        engine_ovsdb_node_get_index(
+                engine_get_input("SB_port_binding", node),
+                "name");
+
     if (chassis_id) {
         chassis = chassis_lookup_by_name(sbrec_chassis_by_name, chassis_id);
     }
@@ -1620,6 +1625,13 @@ runtime_data_sb_ro_handler(struct engine_node *node, void *data)
             engine_set_node_state(node, EN_UPDATED);
             rt_data->tracked = true;
         }
+
+        if (sbrec_port_binding_by_name) {
+            if_status_handle_lports(ctrl_ctx->if_mgr,
+                                  chassis,
+                                  sbrec_port_binding_by_name,
+                                  sb_readonly);
+        }
     }
     return true;
 }
diff --git a/tests/ovn.at b/tests/ovn.at
index a0378a728..a849a483d 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -34403,10 +34403,8 @@ sleep_controller
 wake_up_sb
 wake_up_controller
 check_ovn_uninstalled
-# Port_down not always set on iface-id removal
-# check_ports_down
-# Port_Binding(chassis) not always removed on iface-id removal
-# check_ports_unbound
+check_ports_down
+check_ports_unbound
 add_iface_ids
 check ovn-nbctl --wait=hv sync
 
@@ -34443,10 +34441,8 @@ sleep_controller
 wake_up_sb
 wake_up_controller
 check_ovn_uninstalled
-# Port_down not always set on Interface removal
-# check_ports_down
-# Port_Binding(chassis) not always removed on Interface removal
-# check_ports_unbound
+check_ports_down
+check_ports_unbound
 add_ovs_interfaces
 check ovn-nbctl --wait=hv sync
 
