[  476.231921] netdevsim netdevsim304 eni304np1: renamed from eth0
[  476.232715] netdevsim netdevsim557 eni557np1: renamed from eth1
[  476.324480] Could not find device with ifindex 2000 in netnsfd 11
[  476.324581] Could not find netns with fd: 2000
[  476.324626] Cannot link a netdevsim to itself
[  476.324682] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).