diff --git a/df_datalink_sp/src/networking/link_layer/link_layer.c b/df_datalink_sp/src/networking/link_layer/link_layer.c
index dfcdd22..fcab981 100644
--- a/df_datalink_sp/src/networking/link_layer/link_layer.c
+++ b/df_datalink_sp/src/networking/link_layer/link_layer.c
@@ -31,7 +31,7 @@
 #endif
 /************************** Constant Definitions *****************************/
 #define NET_START_TIME_INFTY UINT32_MAX
-#define LINK_BROCK_THRESHOLD (3 * 200) // 3 secods
+#define LINK_BROCK_THRESHOLD L2_SLOTS_PER_FRAME // 0.5 secods
 
 /************************** Variable Definitions *****************************/
 /***************** Macros (Inline Functions) Definitions *********************/