[  479.552928] netdevsim netdevsim450 eni450np1: renamed from eth0
[  479.553254] netdevsim netdevsim746 eni746np1: renamed from eth1
[  479.645921] Could not find device with ifindex 2000 in netnsfd 11
[  479.646011] Could not find netns with fd: 2000
[  479.646054] Cannot link a netdevsim to itself
[  479.646109] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).