[  737.773867][T13073] netdevsim netdevsim417 eni417np1: renamed from eth0
[  737.788227][T13075] netdevsim netdevsim721 eni721np1: renamed from eth1
[  738.504291][T13061] Could not find device with ifindex 2000 in netnsfd 11
[  738.505214][T13061] Could not find netns with fd: 2000
[  738.505691][T13061] Cannot link a netdevsim to itself
[  738.506281][T13061] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).