[  457.384251] netdevsim netdevsim313 eni313np1: renamed from eth0
[  457.385049] netdevsim netdevsim668 eni668np1: renamed from eth1
[  457.493342] Could not find device with ifindex 2000 in netnsfd 11
[  457.493467] Could not find netns with fd: 2000
[  457.493520] Cannot link a netdevsim to itself
[  457.493582] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).