*** Variables ***
| @{plugins_to_enable}= | dpdk_plugin.so
| ${nic_name}= | virtual
+| ${nic_driver}= | vfio-pci
| ${nf_chains}= | ${1}
| ${nf_nodes}= | ${1}
| ${nf_dtc} | ${1}
| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
| | And Add PCI devices to all DUTs
| | And Apply startup configuration on all VPP DUTs | with_trace=${True}
-| | When Initialize IPv6 forwarding with vhost in 2-node circular topology
+| | When Initialize layer driver | ${nic_driver}
+| | And Initialize IPv6 forwarding with vhost in 2-node circular topology
| | ... | nf_nodes=${nf_nodes}
| | And Configure chains of NFs connected via vhost-user
| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | vnf=vpp_chain_ip6