Dear Ben, Thanks for reply. I am using VPP(virtio-user) and TestPMD/Openvswitch(Vhost-user) on my physical host.
The " vppctl create interface virtio " command needs a PCI address for input. The testpmd/openvswitch only create a socket for communication between frontend and backend. It seems that I can't use this command for my test case? I found someone faced the same problem I encountered, I don't know whether he solved the problem: https://lists.fd.io/g/vpp-dev/topic/32843106 Per Steven's suggestion, the only way I can try is the Memif interface? BR
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