[  480.230649] netdevsim netdevsim302 eni302np1: renamed from eth0
[  480.231517] netdevsim netdevsim557 eni557np1: renamed from eth0
[  480.322533] Could not find device with ifindex 2000 in netnsfd 11
[  480.322622] Could not find netns with fd: 2000
[  480.322671] Cannot link a netdevsim to itself
[  480.322726] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).