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Sebastian Bøe 55ee53ce91 cmake: Prepend 'cmake_minimum_required()' into 'app' build scripts 
Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the
application and test build scripts.

Modern versions of CMake will spam users with a deprecation warning
when the toplevel CMakeLists.txt does not specify a CMake
version. This is documented in bug #8355.

To resolve this we include a cmake_minimum_required() line into the
toplevel build scripts. Additionally, cmake_minimum_required is
invoked from within boilerplate.cmake. The highest version will be
enforced.

This patch allows us to afterwards change CMake policy CMP000 from OLD
to NEW which in turn finally rids us of the verbose warning.

The extra boilerplate is considered more acceptable than the verbosity
of the CMP0000 policy.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-08-15 04:06:50 -07:00
..
src samples: net: stats: Print ethernet statistics 2018-04-11 16:49:48 +03:00
CMakeLists.txt cmake: Prepend 'cmake_minimum_required()' into 'app' build scripts 2018-08-15 04:06:50 -07:00
Kconfig Kconfig: Include Kconfig.zephyr last in sample Kconfig files 2018-08-10 12:38:28 -07:00
prj.conf net: config: Rename Kconfig options to correspond to library name 2018-08-13 18:42:31 -07:00
README.rst sample: net: stats: Example how to use net_mgmt for statistics 2018-04-10 13:29:39 +03:00
sample.yaml sample: net: stats: Example how to use net_mgmt for statistics 2018-04-10 13:29:39 +03:00

README.rst 

.. _net_stats-sample:

Network Statistics Sample Application
#####################################

Overview
********

This sample shows how to query (and display) network statistics from a user
application.

The source code for this sample application can be found at:
:file:`samples/net/stats`.

Requirements
************

- :ref:`networking_with_qemu`

Building and Running
********************

A good way to run this sample application is with QEMU as described in
:ref:`networking_with_qemu`.

Follow these steps to build the network statistics sample application:

.. zephyr-app-commands::
   :zephyr-app: samples/net/stats
   :board: <board to use>
   :conf: prj.conf
   :goals: build
   :compact:

If everything is configured correctly, the application will periodically print
current network statistics to the console.

.. code-block:: console

    Global network statistics
    IPv6 recv      27	sent	8	drop	0	forwarded	0
    IPv6 ND recv   2	sent	5	drop	2
    IPv6 MLD recv  0	sent	3	drop	0
    IPv4 recv      20	sent	0	drop	20	forwarded	0
    IP vhlerr      0	hblener	0	lblener	0
    IP fragerr     0	chkerr	0	protoer	0
    ICMP recv      15	sent	3	drop	13
    ICMP typeer    0	chkerr	0
    UDP recv       0	sent	0	drop	30
    UDP chkerr     0
    TCP bytes recv 0	sent	0
    TCP seg recv   0	sent	0	drop	0
    TCP seg resent 0	chkerr	0	ackerr	0
    TCP seg rsterr 0	rst	0	re-xmit	0
    TCP conn drop  0	connrst	0
    Bytes received 7056
    Bytes sent     564
    Processing err 1