[  484.478106] netdevsim netdevsim376 eni376np1: renamed from eth0
[  484.480366] netdevsim netdevsim723 eni723np1: renamed from eth1
[  484.561308] Could not find device with ifindex 2000 in netnsfd 11
[  484.561389] Could not find netns with fd: 2000
[  484.561432] Cannot link a netdevsim to itself
[  484.561482] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).