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 (although that will limit some of the features that invove multiple compute nodes in the packet path).
+a compute node without a switch.
Software Requirements
---------------------
- 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).
+More detailed instructions can be found in the DPDK documentation (https://buildmedia.readthedocs.org/media/pdf/dpdk/latest/dpdk.pdf).