diff --git a/kernel/mars.h b/kernel/mars.h
index 5cf0d31b..60d8c5e4 100644
--- a/kernel/mars.h
+++ b/kernel/mars.h
@@ -352,9 +352,10 @@ extern void mars_power_led_off(struct mars_brick *brick, bool val);
 /* this should disappear!
  */
 extern void (*_mars_trigger)(void);
-extern void (*_mars_remote_trigger)(void);
+extern void (*_mars_remote_trigger)(bool do_all);
 #define mars_trigger() do { if (_mars_trigger) { MARS_DBG("trigger...\n"); _mars_trigger(); } } while (0)
-#define mars_remote_trigger() do { if (_mars_remote_trigger) { MARS_DBG("remote_trigger...\n"); _mars_remote_trigger(); } } while (0)
+#define mars_remote_trigger() do { if (_mars_remote_trigger) { MARS_DBG("remote_trigger...\n"); _mars_remote_trigger(false); } } while (0)
+#define mars_remote_trigger_all() do { if (_mars_remote_trigger) { MARS_DBG("remote_trigger_all...\n"); _mars_remote_trigger(true); } } while (0)
 
 /////////////////////////////////////////////////////////////////////////
 
diff --git a/kernel/sy_old/mars_main.c b/kernel/sy_old/mars_main.c
index 86ce208c..f67a54e3 100644
--- a/kernel/sy_old/mars_main.c
+++ b/kernel/sy_old/mars_main.c
@@ -2435,7 +2435,7 @@ void from_remote_trigger(void)
 EXPORT_SYMBOL_GPL(from_remote_trigger);
 
 static
-void __mars_remote_trigger(void)
+void __mars_remote_trigger(bool do_all)
 {
 	struct list_head *tmp;
 	int count = 0;
@@ -2443,6 +2443,9 @@ void __mars_remote_trigger(void)
 	down_read(&peer_lock);
 	for (tmp = peer_anchor.next; tmp != &peer_anchor; tmp = tmp->next) {
 		struct mars_peerinfo *peer = container_of(tmp, struct mars_peerinfo, peer_head);
+		/* skip some peers when requested */
+		if (!do_all && !peer->do_communicate)
+			continue;
 		peer->to_remote_trigger = true;
 		count++;
 	}
@@ -5898,7 +5901,7 @@ static int exit_fn_nr = 0;
 	} while (0)
 
 
-void (*_mars_remote_trigger)(void);
+void (*_mars_remote_trigger)(bool do_all);
 EXPORT_SYMBOL_GPL(_mars_remote_trigger);
 
 static void exit_main(void)
diff --git a/kernel/sy_old/mars_proc.c b/kernel/sy_old/mars_proc.c
index 9b5229cf..3242c849 100644
--- a/kernel/sy_old/mars_proc.c
+++ b/kernel/sy_old/mars_proc.c
@@ -92,7 +92,9 @@ int trigger_sysctl_handler(
 			if (code > 0) {
 				mars_trigger();
 			}
-			if (code > 1) {
+			if (code > 2) {
+				mars_remote_trigger_all();
+			} else if (code > 1) {
 				mars_remote_trigger();
 			}
 		}