[  491.614758] netdevsim netdevsim258 eni258np1: renamed from eth0
[  491.711670] netdevsim netdevsim751 eni751np1: renamed from eth1
[  491.950153] Could not find device with ifindex 2000 in netnsfd 11
[  491.950497] Could not find netns with fd: 2000
[  491.950613] Cannot link a netdevsim to itself
[  491.950738] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).