[  489.690672] netdevsim netdevsim321 eni321np1: renamed from eth0
[  489.787884] netdevsim netdevsim559 eni559np1: renamed from eth1
[  489.985679] Could not find device with ifindex 2000 in netnsfd 11
[  489.986043] Could not find netns with fd: 2000
[  489.986175] Cannot link a netdevsim to itself
[  489.986322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).