[  756.703418][T14601] netdevsim netdevsim308 eni308np1: renamed from eth0
[  756.716515][T14603] netdevsim netdevsim620 eni620np1: renamed from eth1
[  757.271477][T14589] Could not find device with ifindex 2000 in netnsfd 11
[  757.271956][T14589] Could not find netns with fd: 2000
[  757.272305][T14589] Cannot link a netdevsim to itself
[  757.272720][T14589] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).