uint64_t net_seq_num; /* Network sequence number, per stream. */
uint32_t data_size; /* data size following this header */
uint32_t padding_size; /* Size of 0 padding the data */
uint64_t net_seq_num; /* Network sequence number, per stream. */
uint32_t data_size; /* data size following this header */
uint32_t padding_size; /* Size of 0 padding the data */