[  489.906140] netdevsim netdevsim394 eni394np1: renamed from eth0
[  490.003328] netdevsim netdevsim725 eni725np1: renamed from eth1
[  490.240394] Could not find device with ifindex 2000 in netnsfd 11
[  490.240744] Could not find netns with fd: 2000
[  490.240871] Cannot link a netdevsim to itself
[  490.241005] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).