[  489.315927] netdevsim netdevsim439 eni439np1: renamed from eth0
[  489.413204] netdevsim netdevsim730 eni730np1: renamed from eth1
[  489.630373] Could not find device with ifindex 2000 in netnsfd 11
[  489.630589] Could not find netns with fd: 2000
[  489.630684] Cannot link a netdevsim to itself
[  489.630815] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).