}
 
 /**
- * @brief Get the packet total length.
+ * @brief Get the packet Total Length in bytes.
  *
  * The Total Length includes everything in the datagram - both header and data.
  * The maximum length is 65,535 bytes.
 
 }
 
 /**
- * @brief Get the Payload Length field.
+ * @brief Get the Payload Length in bytes.
  *
  * This field tells how many bytes follow the 40-byte fixed length IPv6 header.
  *
 
  * |  (6)  |               |                                      |       |
  * +-------+---------------+-------+--------------+---------------+       |
  * |                               |              |               |       |
- * |        payload length         | next header  |   hop limit   |       |
+ * |    payload length in bytes    | next header  |   hop limit   |       |
  * |                               |              |               |       |
  * +---------------+---------------+--------------+---------------+       |
  * |                                                              |       |