diff --git a/SOURCES/openvswitch-3.1.0.patch b/SOURCES/openvswitch-3.1.0.patch
index a599243..68c0fac 100644
--- a/SOURCES/openvswitch-3.1.0.patch
+++ b/SOURCES/openvswitch-3.1.0.patch
@@ -2629,6 +2629,39 @@ index 4c07e2216..270dc95ce 100644
  
          id->prio = tc_get_major(tc->tcm_info);
          id->handle = tc->tcm_handle;
+diff --git a/ofproto/connmgr.c b/ofproto/connmgr.c
+index 7b14cae77..b092e9e04 100644
+--- a/ofproto/connmgr.c
++++ b/ofproto/connmgr.c
+@@ -1649,6 +1649,8 @@ connmgr_send_table_status(struct connmgr *mgr,
+     }
+ }
+ 
++COVERAGE_DEFINE(connmgr_async_unsent);
++
+ /* Given 'pin', sends an OFPT_PACKET_IN message to each OpenFlow controller as
+  * necessary according to their individual configurations. */
+ void
+@@ -1656,6 +1658,7 @@ connmgr_send_async_msg(struct connmgr *mgr,
+                        const struct ofproto_async_msg *am)
+ {
+     struct ofconn *ofconn;
++    bool sent = false;
+ 
+     LIST_FOR_EACH (ofconn, connmgr_node, &mgr->conns) {
+         enum ofputil_protocol protocol = ofconn_get_protocol(ofconn);
+@@ -1677,6 +1680,11 @@ connmgr_send_async_msg(struct connmgr *mgr,
+                       am->pin.up.base.flow_metadata.flow.in_port.ofp_port,
+                       msg, &txq);
+         do_send_packet_ins(ofconn, &txq);
++        sent = true;
++    }
++
++    if (!sent) {
++        COVERAGE_INC(connmgr_async_unsent);
+     }
+ }
+ 
 diff --git a/ofproto/ofproto-dpif-ipfix.c b/ofproto/ofproto-dpif-ipfix.c
 index 742eed399..f13478a88 100644
 --- a/ofproto/ofproto-dpif-ipfix.c
diff --git a/SPECS/openvswitch3.1.spec b/SPECS/openvswitch3.1.spec
index 22faf96..bce9310 100644
--- a/SPECS/openvswitch3.1.spec
+++ b/SPECS/openvswitch3.1.spec
@@ -63,7 +63,7 @@ Summary: Open vSwitch
 Group: System Environment/Daemons daemon/database/utilities
 URL: http://www.openvswitch.org/
 Version: 3.1.0
-Release: 50%{?dist}
+Release: 51%{?dist}
 
 # Nearly all of openvswitch is ASL 2.0.  The bugtool is LGPLv2+, and the
 # lib/sflow*.[ch] files are SISSL
@@ -757,6 +757,12 @@ exit 0
 %endif
 
 %changelog
+* Tue Aug 15 2023 Open vSwitch CI <ovs-ci@redhat.com> - 3.1.0-51
+- Merging upstream branch-3.1 [RH git: 7f523f24fb]
+    Commit list:
+    d653fd1986 connmgr: Count unsent async messages.
+
+
 * Mon Aug 14 2023 Open vSwitch CI <ovs-ci@redhat.com> - 3.1.0-50
 - Merging upstream branch-3.1 [RH git: 779079ec3f]
     Commit list: