[  843.614638][T14768] netdevsim netdevsim331 eni331np1: renamed from eth0
[  843.643983][T14770] netdevsim netdevsim540 eni540np1: renamed from eth1
[  844.274041][T14756] Could not find device with ifindex 2000 in netnsfd 11
[  844.274870][T14756] Could not find netns with fd: 2000
[  844.275304][T14756] Cannot link a netdevsim to itself
[  844.275747][T14756] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).