[  489.030239] netdevsim netdevsim481 eni481np1: renamed from eth0
[  489.132602] netdevsim netdevsim604 eni604np1: renamed from eth1
[  489.668246] Could not find device with ifindex 2000 in netnsfd 11
[  489.668440] Could not find netns with fd: 2000
[  489.668540] Cannot link a netdevsim to itself
[  489.668640] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).