[  486.297446] netdevsim netdevsim440 eni440np1: renamed from eth0
[  486.298189] netdevsim netdevsim661 eni661np1: renamed from eth1
[  486.391023] Could not find device with ifindex 2000 in netnsfd 11
[  486.391204] Could not find netns with fd: 2000
[  486.391375] Cannot link a netdevsim to itself
[  486.391537] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).