[  490.191939] netdevsim netdevsim746 eni746np1: renamed from eth1
[  490.293071] netdevsim netdevsim476 eni476np1: renamed from eth0
[  490.675601] Could not find device with ifindex 2000 in netnsfd 11
[  490.675782] Could not find netns with fd: 2000
[  490.675864] Cannot link a netdevsim to itself
[  490.675974] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).