diff options
Diffstat (limited to 'docs/testing/user/userguide/hw_requirements.rst')
| -rw-r--r-- | docs/testing/user/userguide/hw_requirements.rst | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/docs/testing/user/userguide/hw_requirements.rst b/docs/testing/user/userguide/hw_requirements.rst deleted file mode 100644 index 4fc6e21..0000000 --- a/docs/testing/user/userguide/hw_requirements.rst +++ /dev/null @@ -1,70 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. SPDX-License-Identifier: CC-BY-4.0 -.. (c) Cisco Systems, Inc - -Requirements for running NFVbench -================================= - -.. _requirements: - -Hardware Requirements ---------------------- -To run NFVbench you need the following hardware: -- a Linux server -- a DPDK compatible NIC with at least 2 ports (preferably 10Gbps or higher) -- 2 ethernet cables between the NIC and the OpenStack pod under test (usually through a top of rack switch) - -The DPDK-compliant NIC must be one supported by the TRex traffic generator (such as Intel X710, refer to the `Trex Installation Guide <https://trex-tgn.cisco.com/trex/doc/trex_manual.html#_download_and_installation>`_ for a complete list of supported NIC) - -To run the TRex traffic generator (that is bundled with NFVbench) you will need to wire 2 physical interfaces of the NIC to the TOR switch(es): - - if you have only 1 TOR, wire both interfaces to that same TOR - - 1 interface to each TOR if you have 2 TORs and want to use bonded links to your compute nodes - -.. image:: images/nfvbench-trex-setup.png - - -Switch Configuration --------------------- -The 2 corresponding ports on the switch(es) facing the Trex ports on the Linux server should be configured in trunk mode (NFVbench will instruct TRex to insert the appropriate vlan tag). - -Using a TOR switch is more representative of a real deployment and allows to measure packet flows on any compute node in the rack without rewiring and includes the overhead of the TOR switch. - -Although not the primary targeted use case, NFVbench could also support the direct wiring of the traffic generator to -a compute node without a switch. - -Software Requirements ---------------------- - -You need Docker to be installed on the Linux server. - -TRex uses the DPDK interface to interact with the DPDK compatible NIC for sending and receiving frames. The Linux server will -need to be configured properly to enable DPDK. - -DPDK requires a uio (User space I/O) or vfio (Virtual Function I/O) kernel module to be installed on the host to work. -There are 2 main uio kernel modules implementations (igb_uio and uio_pci_generic) and one vfio kernel module implementation. - -To check if a uio or vfio is already loaded on the host: - -.. code-block:: bash - - lsmod | grep -e igb_uio -e uio_pci_generic -e vfio - - -If missing, it is necessary to install a uio/vfio kernel module on the host server: - -- find a suitable kernel module for your host server (any uio or vfio kernel module built with the same Linux kernel version should work) -- load it using the modprobe and insmod commands - -Example of installation of the igb_uio kernel module: - -.. code-block:: bash - - modprobe uio - insmod ./igb_uio.ko - -Finally, the correct iommu options and huge pages to be configured on the Linux server on the boot command line: - -- enable intel_iommu and iommu pass through: "intel_iommu=on iommu=pt" -- for Trex, pre-allocate 1024 huge pages of 2MB each (for a total of 2GB): "hugepagesz=2M hugepages=1024" - -More detailed instructions can be found in the DPDK documentation (https://media.readthedocs.org/pdf/dpdk/latest/dpdk.pdf). |