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diff --git a/docs/gettingstarted/progressivevpp/routing.rst b/docs/gettingstarted/progressivevpp/routing.rst new file mode 100644 index 00000000000..c9586c1c85d --- /dev/null +++ b/docs/gettingstarted/progressivevpp/routing.rst @@ -0,0 +1,76 @@ +.. _routing: + +.. toctree:: + +Routing +======= + +Skills to be Learned +--------------------- + +In this exercise you will learn these new skills: + +#. Add route to Linux Host routing table +#. Add route to FD.io VPP routing table + +And revisit the old ones: + +#. Examine FD.io VPP routing table +#. Enable trace on vpp1 and vpp2 +#. ping from host to FD.io VPP +#. Examine and clear trace on vpp1 and vpp2 +#. ping from FD.io VPP to host +#. Examine and clear trace on vpp1 and vpp2 + +VPP command learned in this exercise +------------------------------------- + +#. `ip route + add <https://docs.fd.io/vpp/17.04/clicmd_src_vnet_ip.html#clicmd_ip_route>`__ + +Topology +--------- + +.. figure:: /_images/Connecting_two_vpp_instances_with_memif.png + :alt: Connect two FD.io VPP topology + + Connect two FD.io VPP topology + +Initial State +-------------- + +The initial state here is presumed to be the final state from the +exercise `Connecting two FD.io VPP +instances <VPP/Progressive_VPP_Tutorial#Connecting_two_vpp_instances>`__ + +Setup host route +----------------- + +.. code-block:: console + + $ sudo ip route add 10.10.2.0/24 via 10.10.1.2 + $ ip route + default via 10.0.2.2 dev enp0s3 + 10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 + 10.10.1.0/24 dev vpp1host proto kernel scope link src 10.10.1.1 + 10.10.2.0/24 via 10.10.1.2 dev vpp1host + +Setup return route on vpp2 +--------------------------- + +.. code-block:: console + + $ sudo vppctl -s /run/vpp/cli-vpp2.sock + vpp# ip route add 10.10.1.0/24 via 10.10.2.1 + +Ping from host through vpp1 to vpp2 +------------------------------------ + +The connection from vpp1 to vpp2 uses the **memif** driver, the connection to the host +uses the **af-packet** driver. To trace packets from the host we use **af-packet-input** from +vpp1 to vpp2 we use **memif-input**. + +#. Setup a trace on vpp1 and vpp2 +#. Ping 10.10.2.2 from the host +#. Examine the trace on vpp1 and vpp2 +#. Clear the trace on vpp1 and vpp2 |