[  472.409838] netdevsim netdevsim664 eni664np1: renamed from eth1
[  472.410285] netdevsim netdevsim385 eni385np1: renamed from eth0
[  472.485842] Could not find device with ifindex 2000 in netnsfd 11
[  472.485936] Could not find netns with fd: 2000
[  472.485986] Cannot link a netdevsim to itself
[  472.486039] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).