[  551.988844] netdevsim netdevsim389 eni389np1: renamed from eth0
[  552.083580] netdevsim netdevsim663 eni663np1: renamed from eth1
[  552.319179] Could not find device with ifindex 2000 in netnsfd 11
[  552.319347] Could not find netns with fd: 2000
[  552.319425] Cannot link a netdevsim to itself
[  552.319521] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).