[  454.773408] netdevsim netdevsim475 eni475np1: renamed from eth0
[  454.774638] netdevsim netdevsim514 eni514np1: renamed from eth1
[  454.868645] Could not find device with ifindex 2000 in netnsfd 11
[  454.868791] Could not find netns with fd: 2000
[  454.868895] Cannot link a netdevsim to itself
[  454.869010] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).