#define L2_RELEASE_CON 0x0002f101
#define L2_RELEASE_IND 0x0002f102
#define L2_RELEASE_RES 0x0002f103
-#define L3_UNKNOWN 0x0003f200
#define L3_ALERTING_REQ 0x00030100
#define L3_ALERTING_IND 0x00030102
#define L3_PROCEEDING_REQ 0x00030200
#endif
#define L3_TIMEOUT_REQ 0x0003f200
#define L3_TIMEOUT_IND 0x0003f202
+#define L3_UNKNOWN 0x0003ff00
struct trace_element {