[  478.508533] netdevsim netdevsim389 eni389np1: renamed from eth0
[  478.509389] netdevsim netdevsim620 eni620np1: renamed from eth1
[  478.597454] Could not find device with ifindex 2000 in netnsfd 11
[  478.597567] Could not find netns with fd: 2000
[  478.597638] Cannot link a netdevsim to itself
[  478.597711] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).