[  484.095024] netdevsim netdevsim683 eni683np1: renamed from eth1
[  484.196111] netdevsim netdevsim505 eni505np1: renamed from eth0
[  484.518653] Could not find device with ifindex 2000 in netnsfd 11
[  484.518855] Could not find netns with fd: 2000
[  484.518939] Cannot link a netdevsim to itself
[  484.519055] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).