[  491.359675] netdevsim netdevsim569 eni569np1: renamed from eth1
[  491.455149] netdevsim netdevsim403 eni403np1: renamed from eth0
[  491.704294] Could not find device with ifindex 2000 in netnsfd 11
[  491.704603] Could not find netns with fd: 2000
[  491.704704] Cannot link a netdevsim to itself
[  491.704817] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).