[  491.405756] netdevsim netdevsim486 eni486np1: renamed from eth0
[  491.501965] netdevsim netdevsim603 eni603np1: renamed from eth1
[  491.748687] Could not find device with ifindex 2000 in netnsfd 11
[  491.749111] Could not find netns with fd: 2000
[  491.749243] Cannot link a netdevsim to itself
[  491.749401] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).