+typedef struct sptps_packet_t {
+ length_t len; /* the actual number of bytes in the `data' field */
+ int priority; /* priority or TOS */
+ node_id_t dstid; /* node ID of the final recipient */
+ node_id_t srcid; /* node ID of the original sender */
+ char data[MAXSIZE];
+} sptps_packet_t;
+