[  474.280510] netdevsim netdevsim456 eni456np1: renamed from eth0
[  474.281098] netdevsim netdevsim704 eni704np1: renamed from eth1
[  474.371574] Could not find device with ifindex 2000 in netnsfd 11
[  474.371664] Could not find netns with fd: 2000
[  474.371708] Cannot link a netdevsim to itself
[  474.371759] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).