[  485.084272] netdevsim netdevsim338 eni338np1: renamed from eth0
[  485.185888] netdevsim netdevsim727 eni727np1: renamed from eth1
[  485.493329] Could not find device with ifindex 2000 in netnsfd 11
[  485.493522] Could not find netns with fd: 2000
[  485.493611] Cannot link a netdevsim to itself
[  485.493732] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).