Fix for ab-mode link failure, QoS metrics (WIP)

node/Constants.hpp

@@ -372,6 +372,11 @@
  */
 #define ZT_QOS_TABLE_SIZE ((ZT_QOS_MAX_PACKET_SIZE * 8) / (64 + 16))
 
+/**
+ * Maximum number of packets we monitor for ACK information at any given time
+ */
+#define ZT_ACK_MAX_PENDING_RECORDS (32 * 1024)
+
 /**
  * Maximum number of packets we monitor for QoS information at any given time
  */