Modified advertisiement trickle handling to remove congestion

Removed routing cost inconsistency to reduce advertisement sending

Added flag for ERRATA fixes to track modifications to specifications

Author: Mika Tervonen

source/6LoWPAN/ws/ws_bootstrap.c

@@ -883,12 +883,17 @@ static void ws_bootstrap_pan_advertisement_analyse_active(struct protocol_interf
      *
      */
 
-    // Wi-SUN specified functionality, causes extra inconsistencies when we hear higher rank advertisements
+#ifdef WISUN_1_0_ERRATA_FIX
+    // All messages are considered as consistent only Solicit will cause inconsistent
+    trickle_consistent_heard(&cur->ws_info->trickle_pan_advertisement);
+#else
+    // Wi-SUN 1.0 specified functionality, causes extra inconsistencies when we hear higher rank advertisements
     if (pan_information->routing_cost >= ws_bootstrap_routing_cost_calculate(cur)) {
         trickle_consistent_heard(&cur->ws_info->trickle_pan_advertisement);
     } else {
         trickle_inconsistent_heard(&cur->ws_info->trickle_pan_advertisement, &cur->ws_info->trickle_params_pan_discovery);
     }
+#endif
 }
 
 static parent_info_t *ws_bootstrap_candidate_parent_get_best(protocol_interface_info_entry_t *cur)

source/6LoWPAN/ws/ws_config.h

@@ -156,4 +156,11 @@ extern uint8_t DEVICE_MIN_SENS;
 #define WS_PARENT_LIST_MAX_PAN_IN_DISCOVERY 5  // During discovery state how many neighbours per pan
 #define WS_PARENT_LIST_MAX_PAN_IN_ACTIVE 2     // During active state two nodes per pan is allowed
 
+/*
+ * Modifications for base specification.
+ *
+ * ERRATA changes after 1.0 specification release.
+ */
+#define WISUN_1_0_ERRATA_FIX
+
 #endif /* WS_CONFIG_H_ */