[  484.067654] netdevsim netdevsim471 eni471np1: renamed from eth0
[  484.169129] netdevsim netdevsim574 eni574np1: renamed from eth1
[  484.525323] Could not find device with ifindex 2000 in netnsfd 11
[  484.525454] Could not find netns with fd: 2000
[  484.525529] Cannot link a netdevsim to itself
[  484.525616] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).