A host interface (af_packet0) can currently be created using the Command-line Arguments as follows:

cat /etc/vpp/startup.conf
dpdk {
  vdev net_af_packet0,iface=vpp1
  vdev net_af_packet1,iface=vpp2
}

This is will create af_packet0 and af_packet1 interfaces in VPP. The preferred way to create host interfaces is to the CLI command: create host-interface This will create interfaces named host-<ifname>.

Since there are two ways to create host interfaces with different naming conventions, the legacy way of creating host interfaces via the Command-line Arguments should be removed.