[  479.210962] netdevsim netdevsim390 eni390np1: renamed from eth0
[  479.212396] netdevsim netdevsim636 eni636np1: renamed from eth0
[  479.308445] Could not find device with ifindex 2000 in netnsfd 11
[  479.308539] Could not find netns with fd: 2000
[  479.308582] Cannot link a netdevsim to itself
[  479.308652] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).