[  489.240140] netdevsim netdevsim383 eni383np1: renamed from eth0
[  489.340938] netdevsim netdevsim631 eni631np1: renamed from eth1
[  489.680928] Could not find device with ifindex 2000 in netnsfd 11
[  489.681071] Could not find netns with fd: 2000
[  489.681152] Cannot link a netdevsim to itself
[  489.681245] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).