[  844.851177][T15863] netdevsim netdevsim712 eni712np1: renamed from eth1
[  844.864663][T15864] netdevsim netdevsim421 eni421np1: renamed from eth0
[  845.593959][T15850] Could not find device with ifindex 2000 in netnsfd 11
[  845.594665][T15850] Could not find netns with fd: 2000
[  845.595130][T15850] Cannot link a netdevsim to itself
[  845.595663][T15850] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).