Coap transmission parameter

Message transmission is controlled by the following parameters:

               +-------------------+---------------+
               | name              | default value |
               +-------------------+---------------+
               | ACK_TIMEOUT       | 2 seconds     |
               | ACK_RANDOM_FACTOR | 1.5           |
               | MAX_RETRANSMIT    | 4             |
               | NSTART            | 1             |
               | DEFAULT_LEISURE   | 5 seconds     |
               | PROBING_RATE      | 1 byte/second |
               +-------------------+---------------+

                 Table 2: CoAP Protocol Parameters