[  484.771555] netdevsim netdevsim342 eni342np1: renamed from eth0
[  484.771995] netdevsim netdevsim647 eni647np1: renamed from eth1
[  484.856380] Could not find device with ifindex 2000 in netnsfd 11
[  484.856525] Could not find netns with fd: 2000
[  484.856628] Cannot link a netdevsim to itself
[  484.856742] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).