[  834.677514][T14601] netdevsim netdevsim456 eni456np1: renamed from eth0
[  834.692175][T14603] netdevsim netdevsim633 eni633np1: renamed from eth1
[  835.536982][T14589] Could not find device with ifindex 2000 in netnsfd 11
[  835.538381][T14589] Could not find netns with fd: 2000
[  835.539455][T14589] Cannot link a netdevsim to itself
[  835.540286][T14589] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).