add domain_switch section for testing the switch to Batman v15, on 2022-05-22

This is just for a quick local test.

domains/ffhb_11s.conf

@@ -76,6 +76,15 @@
 			},
 		},
 	},
+	domain_switch = {
+		target_domain = 'ffhb_batv15',
+		switch_after_offline_mins = 120,
+		switch_time = 1653210000, -- Sun May 22 11:00:00 2022 CEST (this is just for testing)
+		connection_check_targets = {
+			'2001:4860:4860::8888',
+			'2001:4860:4860::8844',
+		},
+	},
 }
 
 -- vim: noet ts=4