[  522.146537] netdevsim netdevsim267 eni267np1: renamed from eth0
[  522.243902] netdevsim netdevsim604 eni604np1: renamed from eth1
[  522.519023] Could not find device with ifindex 2000 in netnsfd 11
[  522.519234] Could not find netns with fd: 2000
[  522.519347] Cannot link a netdevsim to itself
[  522.519450] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).