[  771.426759][T14621] netdevsim netdevsim484 eni484np1: renamed from eth0
[  771.458325][T14623] netdevsim netdevsim754 eni754np1: renamed from eth1
[  772.152298][T14608] Could not find device with ifindex 2000 in netnsfd 11
[  772.153529][T14608] Could not find netns with fd: 2000
[  772.154447][T14608] Cannot link a netdevsim to itself
[  772.155529][T14608] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).