[  484.179683] netdevsim netdevsim502 eni502np1: renamed from eth0
[  484.180055] netdevsim netdevsim633 eni633np1: renamed from eth1
[  484.265068] Could not find device with ifindex 2000 in netnsfd 11
[  484.265161] Could not find netns with fd: 2000
[  484.265204] Cannot link a netdevsim to itself
[  484.265261] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).