[  489.480742] netdevsim netdevsim477 eni477np1: renamed from eth0
[  489.481188] netdevsim netdevsim570 eni570np1: renamed from eth1
[  489.573262] Could not find device with ifindex 2000 in netnsfd 11
[  489.573414] Could not find netns with fd: 2000
[  489.573515] Cannot link a netdevsim to itself
[  489.573626] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).