[  472.843967] netdevsim netdevsim273 eni273np1: renamed from eth0
[  472.844376] netdevsim netdevsim549 eni549np1: renamed from eth1
[  472.927810] Could not find device with ifindex 2000 in netnsfd 11
[  472.927966] Could not find netns with fd: 2000
[  472.928069] Cannot link a netdevsim to itself
[  472.928182] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).