[  459.183381] netdevsim netdevsim500 eni500np1: renamed from eth0
[  459.185234] netdevsim netdevsim671 eni671np1: renamed from eth1
[  459.283129] Could not find device with ifindex 2000 in netnsfd 11
[  459.283245] Could not find netns with fd: 2000
[  459.283303] Cannot link a netdevsim to itself
[  459.283365] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).