:orphan:

.. title:: CONFIG_NET_GPTP_BMCA_PRIORITY1

.. kconfig:: CONFIG_NET_GPTP_BMCA_PRIORITY1

CONFIG_NET_GPTP_BMCA_PRIORITY1
##############################

*BMCA priority1 value*

Type: ``int``

Help
====

.. code-block:: none

    The priority1 attribute of the local clock. It is used in the
    Best Master Clock selection Algorithm (BMCA), lower values take
    precedence. The default value is 255 if the device is non grand
    master capable, and 248 if it is GM capable.
    See Chapter 8.6.2.1 of IEEE 802.1AS for a more detailed description
    of priority1. Note that if the system is non GM capable, then the
    value 255 is used always and this setting is ignored.

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

\ :kconfig:`NET_GPTP <CONFIG_NET_GPTP>` && \ :kconfig:`NET_L2_ETHERNET <CONFIG_NET_L2_ETHERNET>` && \ :kconfig:`NETWORKING <CONFIG_NETWORKING>`

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

Defaults
========

- 248 if \ :kconfig:`NET_GPTP_GM_CAPABLE <CONFIG_NET_GPTP_GM_CAPABLE>`
- 255

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



At ``<Zephyr Subsystem>/net/l2/ethernet/gptp/Kconfig:198``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:39`` → ``<Zephyr Subsystem>/net/Kconfig:85`` → ``<Zephyr Subsystem>/net/l2/Kconfig:71`` → ``<Zephyr Subsystem>/net/l2/ethernet/Kconfig:76``

Menu path: (Top) → Sub Systems and OS Services → Networking → Link layer and IP networking support → Link layer options → Enable Ethernet support → Enable IEEE 802.1AS (gPTP) support [EXPERIMENTAL]

.. code-block:: kconfig

    config NET_GPTP_BMCA_PRIORITY1
    	int "BMCA priority1 value"
    	range 0 255
    	default 248 if NET_GPTP_GM_CAPABLE
    	default 255
    	depends on NET_GPTP && NET_L2_ETHERNET && NETWORKING
    	help
    	  The priority1 attribute of the local clock. It is used in the
    	  Best Master Clock selection Algorithm (BMCA), lower values take
    	  precedence. The default value is 255 if the device is non grand
    	  master capable, and 248 if it is GM capable.
    	  See Chapter 8.6.2.1 of IEEE 802.1AS for a more detailed description
    	  of priority1. Note that if the system is non GM capable, then the
    	  value 255 is used always and this setting is ignored.

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