[  770.016374][T14586] netdevsim netdevsim453 eni453np1: renamed from eth0
[  770.037827][T14589] netdevsim netdevsim751 eni751np1: renamed from eth1
[  770.648000][T14574] Could not find device with ifindex 2000 in netnsfd 11
[  770.649037][T14574] Could not find netns with fd: 2000
[  770.649786][T14574] Cannot link a netdevsim to itself
[  770.650435][T14574] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).