[  479.886758] netdevsim netdevsim440 eni440np1: renamed from eth0
[  479.987930] netdevsim netdevsim545 eni545np1: renamed from eth1
[  480.331803] Could not find device with ifindex 2000 in netnsfd 11
[  480.331934] Could not find netns with fd: 2000
[  480.332013] Cannot link a netdevsim to itself
[  480.332104] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).