diff --git a/testing/btest/Baseline/core.expire-all-timers/conn-all.log b/testing/btest/Baseline/core.expire-all-timers/conn-all.log
new file mode 100644
index 0000000000..194375388d
--- /dev/null
+++ b/testing/btest/Baseline/core.expire-all-timers/conn-all.log
@@ -0,0 +1,12 @@
+### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
+#separator \x09
+#set_separator	,
+#empty_field	(empty)
+#unset_field	-
+#path	conn
+#open XXXX-XX-XX-XX-XX-XX
+#fields	ts	uid	id.orig_h	id.orig_p	id.resp_h	id.resp_p	proto	service	duration	orig_bytes	resp_bytes	conn_state	local_orig	local_resp	missed_bytes	history	orig_pkts	orig_ip_bytes	resp_pkts	resp_ip_bytes	tunnel_parents
+#types	time	string	addr	port	addr	port	enum	string	interval	count	count	string	bool	bool	count	string	count	count	count	count	set[string]
+XXXXXXXXXX.XXXXXX	CHhAvVGS1DHFjwGM9	10.0.0.1	51889	192.168.0.1	80	tcp	-	0.000010	18	0	OTH	-	-	0	Da	1	58	1	40	-
+XXXXXXXXXX.XXXXXX	ClEkJM2Vm5giqnMf4h	10.0.0.1	51889	192.168.0.1	80	tcp	-	-	-	-	OTH	-	-	0	D	1	58	0	0	-
+#close XXXX-XX-XX-XX-XX-XX
diff --git a/testing/btest/Baseline/core.expire-all-timers/conn-limited.log b/testing/btest/Baseline/core.expire-all-timers/conn-limited.log
new file mode 100644
index 0000000000..c349ee4a03
--- /dev/null
+++ b/testing/btest/Baseline/core.expire-all-timers/conn-limited.log
@@ -0,0 +1,11 @@
+### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
+#separator \x09
+#set_separator	,
+#empty_field	(empty)
+#unset_field	-
+#path	conn
+#open XXXX-XX-XX-XX-XX-XX
+#fields	ts	uid	id.orig_h	id.orig_p	id.resp_h	id.resp_p	proto	service	duration	orig_bytes	resp_bytes	conn_state	local_orig	local_resp	missed_bytes	history	orig_pkts	orig_ip_bytes	resp_pkts	resp_ip_bytes	tunnel_parents
+#types	time	string	addr	port	addr	port	enum	string	interval	count	count	string	bool	bool	count	string	count	count	count	count	set[string]
+XXXXXXXXXX.XXXXXX	CHhAvVGS1DHFjwGM9	10.0.0.1	51889	192.168.0.1	80	tcp	-	300.000010	18	0	OTH	-	-	0	DaT	2	116	1	40	-
+#close XXXX-XX-XX-XX-XX-XX
diff --git a/testing/btest/Traces/tcp/retransmit-timeout.pcap b/testing/btest/Traces/tcp/retransmit-timeout.pcap
new file mode 100644
index 0000000000..2529d4d214
Binary files /dev/null and b/testing/btest/Traces/tcp/retransmit-timeout.pcap differ
diff --git a/testing/btest/core/expire-all-timers.zeek b/testing/btest/core/expire-all-timers.zeek
new file mode 100644
index 0000000000..a6cff297f2
--- /dev/null
+++ b/testing/btest/core/expire-all-timers.zeek
@@ -0,0 +1,26 @@
+# @TEST-EXEC: zeek -b -C -r $TRACES/tcp/retransmit-timeout.pcap %INPUT
+# @TEST-EXEC: mv conn.log conn-limited.log
+
+# @TEST-EXEC: zeek -b -C -r $TRACES/tcp/retransmit-timeout.pcap %INPUT max_timer_expires=0
+# @TEST-EXEC: mv conn.log conn-all.log
+
+
+# @TEST-EXEC: btest-diff conn-limited.log
+# @TEST-EXEC: btest-diff conn-all.log
+
+@load base/protocols/conn
+
+const max_timer_expires_default = max_timer_expires;
+
+event dummy()
+	{
+	}
+
+event network_time_init()
+	{
+	# Suppress connection timeout by scheduling more timers than
+	# can be handled in the context of a single packet, by default.
+	local i = 0;
+	while ( ++i <= max_timer_expires_default )
+		schedule 4 min { dummy() };
+	}