[  814.622686][T15856] netdevsim netdevsim462 eni462np1: renamed from eth0
[  814.628463][T15854] netdevsim netdevsim682 eni682np1: renamed from eth1
[  815.255389][T15842] Could not find device with ifindex 2000 in netnsfd 11
[  815.256116][T15842] Could not find netns with fd: 2000
[  815.256641][T15842] Cannot link a netdevsim to itself
[  815.257198][T15842] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).