[  472.039249] netdevsim netdevsim403 eni403np1: renamed from eth0
[  472.039786] netdevsim netdevsim564 eni564np1: renamed from eth1
[  472.118465] Could not find device with ifindex 2000 in netnsfd 11
[  472.118554] Could not find netns with fd: 2000
[  472.118598] Cannot link a netdevsim to itself
[  472.118653] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).