:orphan:

.. title:: CONFIG_COAP_RANDOMIZE_ACK_TIMEOUT

.. kconfig:: CONFIG_COAP_RANDOMIZE_ACK_TIMEOUT

CONFIG_COAP_RANDOMIZE_ACK_TIMEOUT
#################################

*Randomize initial ACK timeout, as specified in RFC 7252*

Type: ``bool``

Help
====

.. code-block:: none

    If enabled, the initial ACK timeout will be randomized, as specified
    in RFC 7252, i.e. will be a random number between ACK_TIMEOUT and
    ACK_TIMEOUT * ACK_RANDOM_FACTOR (where ACK_TIMEOUT is specified by
    COAP_INIT_ACK_TIMEOUT_MS option). Otherwise, the initial ACK timeout
    will be fixed to the value of COAP_INIT_ACK_TIMEOUT_MS option.

Direct dependencies
===================

\ :kconfig:`COAP <CONFIG_COAP>` && \ :kconfig:`NETWORKING <CONFIG_NETWORKING>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- y

Kconfig definition
==================



At ``<Zephyr Subsystem>/net/lib/coap/Kconfig:62``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:39`` → ``<Zephyr Subsystem>/net/Kconfig:89`` → ``<Zephyr Subsystem>/net/lib/Kconfig:6``

Menu path: (Top) → Sub Systems and OS Services → Networking → Link layer and IP networking support → Network Protocols → CoAP Support

.. code-block:: kconfig

    config COAP_RANDOMIZE_ACK_TIMEOUT
    	bool "Randomize initial ACK timeout, as specified in RFC 7252"
    	default y
    	depends on COAP && NETWORKING
    	help
    	  If enabled, the initial ACK timeout will be randomized, as specified
    	  in RFC 7252, i.e. will be a random number between ACK_TIMEOUT and
    	  ACK_TIMEOUT * ACK_RANDOM_FACTOR (where ACK_TIMEOUT is specified by
    	  COAP_INIT_ACK_TIMEOUT_MS option). Otherwise, the initial ACK timeout
    	  will be fixed to the value of COAP_INIT_ACK_TIMEOUT_MS option.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*