[ 1018.469072][T12474] netdevsim netdevsim722 eni722np1: renamed from eth1
[ 1018.584795][T12475] netdevsim netdevsim315 eni315np1: renamed from eth0
[ 1020.492643][T12467] Could not find device with ifindex 2000 in netnsfd 11
[ 1020.494132][T12467] Could not find netns with fd: 2000
[ 1020.495303][T12467] Cannot link a netdevsim to itself
[ 1020.496748][T12467] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).