[  522.308474] netdevsim netdevsim697 eni697np1: renamed from eth1
[  522.405612] netdevsim netdevsim430 eni430np1: renamed from eth0
[  522.616655] Could not find device with ifindex 2000 in netnsfd 11
[  522.616854] Could not find netns with fd: 2000
[  522.616956] Cannot link a netdevsim to itself
[  522.617077] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).