| .. _tc-sample: |
| |
| Traffic Class Sample Application |
| ################################ |
| |
| Overview |
| ******** |
| |
| The TC sample application for Zephyr sets up two virtual LAN networks and |
| starts to send prioritized UDP packets from one VLAN network to the other. |
| The use of VLAN network is optional but as VLAN defines priorities to network |
| traffic, it is convenient to use that concept here. The application also |
| enables net-shell and allows user to view VLAN settings. |
| |
| The source code for this sample application can be found at: |
| :file:`samples/net/traffic_class`. |
| |
| Requirements |
| ************ |
| |
| - :ref:`networking_with_qemu` |
| |
| Building and Running |
| ******************** |
| |
| A good way to run this TC application is with QEMU as described in |
| :ref:`networking_with_qemu`. |
| Currently only one VLAN network (tag) is supported when Zephyr is run inside |
| QEMU. If you're using a FRDM-K64F board, then multiple VLAN networks can be |
| configured. Note that VLAN is only supported for boards that have ethernet |
| port. |
| |
| Follow these steps to build the TC sample application: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/net/traffic_class |
| :board: <board to use> |
| :conf: prj.conf |
| :goals: build |
| :compact: |
| |
| The default configuration file prj.conf creates two virtual LAN networks |
| with these settings: |
| |
| - VLAN tag 100: IPv4 198.51.100.1 and IPv6 2001:db8:100::1 |
| - VLAN tag 200: IPv4 203.0.113.1 and IPv6 2001:db8:200::1 |
| |
| Setting up Linux Host |
| ===================== |
| |
| The :file:`samples/net/vlan/vlan-setup-linux.sh` provides a script that can be |
| executed on the Linux host. It creates two VLANs on the Linux host and creates |
| routes to Zephyr. |
| |
| If everything is configured correctly, you will be able to successfully execute |
| the following commands on the Linux host. |
| |
| .. code-block:: console |
| |
| ping -c 1 2001:db8:100::1 |
| ping -c 1 198.51.100.1 |
| ping -c 1 2001:db8:200::1 |
| ping -c 1 203.0.113.1 |
| |
| Running echo-server in Linux Host |
| ================================= |
| |
| There is one useful testing scenario that can be used with Linux host. |
| Here traffic-class application is run in QEMU and echo-server is run in |
| Linux host. |
| |
| In a terminal window: |
| |
| .. code-block:: console |
| |
| $ sudo ./echo-server -i tap0 |
| |
| Then you can run traffic-class application in QEMU as described above. |
