[  701.475762][T13062] netdevsim netdevsim321 eni321np1: renamed from eth0
[  701.500455][T13064] netdevsim netdevsim512 eni512np1: renamed from eth1
[  702.126970][T13049] Could not find device with ifindex 2000 in netnsfd 11
[  702.130443][T13049] Could not find netns with fd: 2000
[  702.131217][T13049] Cannot link a netdevsim to itself
[  702.131674][T13049] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).