[ 1237.084909][T12777] netdevsim netdevsim678 eni678np1: renamed from eth1
[ 1237.235516][T12778] netdevsim netdevsim457 eni457np1: renamed from eth0
[ 1239.805708][T12770] Could not find device with ifindex 2000 in netnsfd 11
[ 1239.807368][T12770] Could not find netns with fd: 2000
[ 1239.808532][T12770] Cannot link a netdevsim to itself
[ 1239.810156][T12770] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).