[  486.802905] netdevsim netdevsim571 eni571np1: renamed from eth1
[  486.899438] netdevsim netdevsim448 eni448np1: renamed from eth0
[  487.131249] Could not find device with ifindex 2000 in netnsfd 11
[  487.131651] Could not find netns with fd: 2000
[  487.131768] Cannot link a netdevsim to itself
[  487.131948] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).