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diff --git a/docs/user/pvpl3.rst b/docs/user/pvpl3.rst new file mode 100644 index 0000000..1b242ca --- /dev/null +++ b/docs/user/pvpl3.rst @@ -0,0 +1,69 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. SPDX-License-Identifier: CC-BY-4.0 +.. (c) Cisco Systems, Inc + + +PVP L3 Router Internal Chain +---------------------------- + +NFVbench can measure the performance of 1 L3 service chain that are setup by NFVbench (VMs, routers and networks). + +PVP L3 router chain is made of 1 VNF (in vpp mode) and has exactly 2 end network interfaces (left and right internal network interfaces) that are connected to 2 neutron routers with 2 edge networks (left and right edge networks). +The PVP L3 router service chain can route L3 packets properly between the left and right networks. + +To run NFVbench on such PVP L3 router service chain: + +- explicitly tell NFVbench to use PVP service chain with L3 router option by adding ``-l3`` or ``--l3-router`` to NFVbench CLI options or ``l3_router: true`` in config +- explicitly tell NFVbench to use VPP forwarder with ``vm_forwarder: vpp`` in config +- specify the 2 end point networks (networks between NFVBench and neutron routers) of your environment in ``internal_networks`` inside the config file. + - The two networks specified will be created if not existing in Neutron and will be used as the end point networks by NFVbench ('lyon' and 'bordeaux' in the diagram below) +- specify the 2 edge networks (networks between neutron routers and loopback VM) of your environment in ``edge_networks`` inside the config file. + - The two networks specified will be created if not existing in Neutron and will be used as the router gateway networks by NFVbench ('paris' and 'marseille' in the diagram below) +- specify the router gateway IPs for the PVPL3 router service chain (1.2.0.1 and 2.2.0.1) +- specify the traffic generator gateway IPs for the PVPL3 router service chain (1.2.0.254 and 2.2.0.254 in diagram below) +- specify the packet source and destination IPs for the virtual devices that are simulated (10.0.0.0/8 and 20.0.0.0/8) + + +.. image:: images/nfvbench-pvpl3.png + +nfvbench configuration file: + +.. code-block:: bash + + vm_forwarder: vpp + + traffic_generator: + ip_addrs: ['10.0.0.0/8', '20.0.0.0/8'] + tg_gateway_ip_addrs: ['1.2.0.254', '2.2.0.254'] + gateway_ip_addrs: ['1.2.0.1', '2.2.0.1'] + + internal_networks: + left: + name: 'lyon' + cidr: '1.2.0.0/24' + gateway: '1.2.0.1' + right: + name: 'bordeaux' + cidr: '2.2.0.0/24' + gateway: '2.2.0.1' + + edge_networks: + left: + name: 'paris' + cidr: '1.1.0.0/24' + gateway: '1.1.0.1' + right: + name: 'marseille' + cidr: '2.1.0.0/24' + gateway: '2.1.0.1' + +Upon start, NFVbench will: +- first retrieve the properties of the left and right networks using Neutron APIs, +- extract the underlying network ID (typically VLAN segmentation ID), +- generate packets with the proper VLAN ID and measure traffic. + + +Please note: ``l3_router`` option is also compatible with external routers. In this case NFVBench will use ``EXT`` chain. + +.. note:: Using a long NFVbench run test, end-to-end connectivity can be lost depending on ARP stale time SUT configuration. + To avoid this issue, activate Gratuitous ARP stream using ``--gratuitous-arp`` or ``-garp`` option. |