[  484.203103] netdevsim netdevsim290 eni290np1: renamed from eth0
[  484.305107] netdevsim netdevsim650 eni650np1: renamed from eth1
[  484.689003] Could not find device with ifindex 2000 in netnsfd 11
[  484.689189] Could not find netns with fd: 2000
[  484.689294] Cannot link a netdevsim to itself
[  484.689421] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).