Start testpmd with 2 ports in interactive mode
./build/app/dpdk-testpmd --legacy-mem --socket-mem 1024,1024 -- \
-i --nb-cores=2 --total-num-mbufs=4096 \
--nb-ports=2 --rxq=4 --txq=4 \
--auto-start --forward-mode=rxonly
Make sure to set the RSS key to be same for both ports else, it would pick different queue on each port for same input