[  520.777540] netdevsim netdevsim651 eni651np1: renamed from eth1
[  520.874953] netdevsim netdevsim408 eni408np1: renamed from eth0
[  521.104087] Could not find device with ifindex 2000 in netnsfd 11
[  521.104294] Could not find netns with fd: 2000
[  521.104399] Cannot link a netdevsim to itself
[  521.104520] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).