[  478.437091] netdevsim netdevsim486 eni486np1: renamed from eth0
[  478.437846] netdevsim netdevsim657 eni657np1: renamed from eth1
[  478.544971] Could not find device with ifindex 2000 in netnsfd 11
[  478.545149] Could not find netns with fd: 2000
[  478.545284] Cannot link a netdevsim to itself
[  478.545421] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).