> A general way to configure kernel interface in VPP is to whitelist that > interface (using its PCI address), bringing down the interface and then > restarting VPP. But, is there a way we can configure kernel interface in > VPP at runtime (using some commands may be) without restarting VPP?
This depends upon the driver you use. DPDK requires what you describe, other drivers are more dynamic: - avf for Intel Fortville and Columbiaville (40G/100G): https://docs.fd.io/vpp/20.09/d1/def/avf_plugin_doc.html - rdma for Mellanox ConnectX4/5: https://docs.fd.io/vpp/20.09/df/d0e/rdma_doc.html - VMWare vmxnet3: https://docs.fd.io/vpp/20.09/d2/d1a/vmxnet3_doc.html - virtio Best ben
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