[  487.809793] netdevsim netdevsim497 eni497np1: renamed from eth0
[  487.906257] netdevsim netdevsim592 eni592np1: renamed from eth1
[  488.118262] Could not find device with ifindex 2000 in netnsfd 11
[  488.118498] Could not find netns with fd: 2000
[  488.118598] Cannot link a netdevsim to itself
[  488.118704] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).