[  459.901545] netdevsim netdevsim705 eni705np1: renamed from eth1
[  459.901988] netdevsim netdevsim421 eni421np1: renamed from eth0
[  459.996683] Could not find device with ifindex 2000 in netnsfd 11
[  459.996806] Could not find netns with fd: 2000
[  459.996864] Cannot link a netdevsim to itself
[  459.996934] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).