[  829.683396][T14763] netdevsim netdevsim473 eni473np1: renamed from eth0
[  829.697595][T14765] netdevsim netdevsim668 eni668np1: renamed from eth1
[  830.312499][T14751] Could not find device with ifindex 2000 in netnsfd 11
[  830.313337][T14751] Could not find netns with fd: 2000
[  830.313710][T14751] Cannot link a netdevsim to itself
[  830.314175][T14751] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).