[ 1024.864856][T12676] netdevsim netdevsim540 eni540np1: renamed from eth1
[ 1024.961930][T12726] netdevsim netdevsim437 eni437np1: renamed from eth0
[ 1026.740048][T12721] Could not find device with ifindex 2000 in netnsfd 11
[ 1026.741643][T12721] Could not find netns with fd: 2000
[ 1026.742615][T12721] Cannot link a netdevsim to itself
[ 1026.752987][T12721] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).