Index: branches/fep_client_cpp/network.h
===================================================================
--- branches/fep_client_cpp/network.h	(revision 71)
+++ branches/fep_client_cpp/network.h	(revision 72)
@@ -2,5 +2,21 @@
 #define NETWORK_H
 #include <vector>
+
 using namespace std;
+// the first byte is not considered in the calculation of "BYTE 2"
+const int Fixed_Byte_To_Checksum = 25;
+
+const int CONTROL_DATA_LEN = 27;
+
+char * const dp5[8] = { "ML_1", "ML_2", "ML_3", "ML_4", "ML_5",
+                                                "ML_6", "HOV_Lane", "FYW_Conn"};
+char * const dp6[8] = { "OS_1", "OS_2", "OS_3", "OS_4", "OS_5",
+                                                "OS_6", "COLL_DIST_2", "COLL_DIST_OFF"};
+char * const dp7[8] = { "DEMAND", "PASSAGE", "QUEUE", "RAMP_ON",
+                                                "RAMP_OFF", "RAMP_HOV", "COLL_DIST_1", "COLL_DIST_ON"};
+char * const dp8[8] = { "SD_1", "SD_2", "SD_3", "SD_4", "SD_5",
+                                                "SD_6", "Pass_Vol_Count", "X"};
+
+
 
 typedef struct loopagg LOOPAGG;