[  488.805709] netdevsim netdevsim407 eni407np1: renamed from eth0
[  488.902870] netdevsim netdevsim613 eni613np1: renamed from eth1
[  489.116511] Could not find device with ifindex 2000 in netnsfd 11
[  489.116844] Could not find netns with fd: 2000
[  489.116939] Cannot link a netdevsim to itself
[  489.117064] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).