[  489.789564] netdevsim netdevsim595 eni595np1: renamed from eth1
[  489.885764] netdevsim netdevsim421 eni421np1: renamed from eth0
[  490.140103] Could not find device with ifindex 2000 in netnsfd 11
[  490.140484] Could not find netns with fd: 2000
[  490.140585] Cannot link a netdevsim to itself
[  490.140701] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).