[  521.316677] netdevsim netdevsim307 eni307np1: renamed from eth0
[  521.413734] netdevsim netdevsim582 eni582np1: renamed from eth1
[  521.649071] Could not find device with ifindex 2000 in netnsfd 11
[  521.649259] Could not find netns with fd: 2000
[  521.649345] Cannot link a netdevsim to itself
[  521.649442] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).