[  487.244551] netdevsim netdevsim393 eni393np1: renamed from eth0
[  487.246579] netdevsim netdevsim715 eni715np1: renamed from eth1
[  487.608838] Could not find device with ifindex 2000 in netnsfd 11
[  487.609027] Could not find netns with fd: 2000
[  487.609133] Cannot link a netdevsim to itself
[  487.609269] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).