[  479.291128] netdevsim netdevsim453 eni453np1: renamed from eth0
[  479.291470] netdevsim netdevsim584 eni584np1: renamed from eth1
[  479.389753] Could not find device with ifindex 2000 in netnsfd 11
[  479.389921] Could not find netns with fd: 2000
[  479.390037] Cannot link a netdevsim to itself
[  479.390153] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).