[  489.662685] netdevsim netdevsim481 eni481np1: renamed from eth0
[  489.760249] netdevsim netdevsim571 eni571np1: renamed from eth1
[  489.980225] Could not find device with ifindex 2000 in netnsfd 11
[  489.980595] Could not find netns with fd: 2000
[  489.980734] Cannot link a netdevsim to itself
[  489.980889] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).