[ 1011.242042][T12062] netdevsim netdevsim500 eni500np1: renamed from eth0
[ 1011.339683][T12129] netdevsim netdevsim652 eni652np1: renamed from eth1
[ 1013.186878][T12550] Could not find device with ifindex 2000 in netnsfd 11
[ 1013.187941][T12550] Could not find netns with fd: 2000
[ 1013.188690][T12550] Cannot link a netdevsim to itself
[ 1013.189498][T12550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).