[ 1355.073504][T12848] netdevsim netdevsim421 eni421np1: renamed from eth0
[ 1355.132585][T12844] netdevsim netdevsim568 eni568np1: renamed from eth1
[ 1357.984787][T12835] Could not find device with ifindex 2000 in netnsfd 11
[ 1357.988136][T12835] Could not find netns with fd: 2000
[ 1357.989600][T12835] Cannot link a netdevsim to itself
[ 1357.991529][T12835] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).