[ 1044.397551][T12763] netdevsim netdevsim620 eni620np1: renamed from eth1
[ 1044.481346][T12764] netdevsim netdevsim343 eni343np1: renamed from eth0
[ 1046.322062][T12756] Could not find device with ifindex 2000 in netnsfd 11
[ 1046.323173][T12756] Could not find netns with fd: 2000
[ 1046.323906][T12756] Cannot link a netdevsim to itself
[ 1046.324715][T12756] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).