ONE/Simple test setup
From fd.io
# create namespace and set up interface in linux ip netns add vpp1 ip link set dev vpp1 up ip link set dev veth_vpp1 up netns vpp1 ip netns exec vpp1 \ bash -c " ip link set dev lo up ip addr add 172.16.1.2/24 dev veth_vpp1 ip route add 172.16.2.0/24 via 172.16.1.1 "