[  479.685650] netdevsim netdevsim572 eni572np1: renamed from eth1
[  479.786071] netdevsim netdevsim393 eni393np1: renamed from eth0
[  480.140045] Could not find device with ifindex 2000 in netnsfd 11
[  480.140227] Could not find netns with fd: 2000
[  480.140332] Cannot link a netdevsim to itself
[  480.140469] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).