[  471.974394] netdevsim netdevsim389 eni389np1: renamed from eth0
[  471.975068] netdevsim netdevsim680 eni680np1: renamed from eth0
[  472.061337] Could not find device with ifindex 2000 in netnsfd 11
[  472.061462] Could not find netns with fd: 2000
[  472.061562] Cannot link a netdevsim to itself
[  472.061673] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).