[  713.426769][T13054] netdevsim netdevsim421 eni421np1: renamed from eth0
[  713.445312][T13056] netdevsim netdevsim588 eni588np1: renamed from eth1
[  714.086910][T13042] Could not find device with ifindex 2000 in netnsfd 11
[  714.087824][T13042] Could not find netns with fd: 2000
[  714.088213][T13042] Cannot link a netdevsim to itself
[  714.088717][T13042] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).