[  521.471685] netdevsim netdevsim447 eni447np1: renamed from eth0
[  521.568606] netdevsim netdevsim613 eni613np1: renamed from eth1
[  521.802885] Could not find device with ifindex 2000 in netnsfd 11
[  521.803111] Could not find netns with fd: 2000
[  521.803248] Cannot link a netdevsim to itself
[  521.803385] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).