[  493.477642] netdevsim netdevsim751 eni751np1: renamed from eth1
[  493.572770] netdevsim netdevsim444 eni444np1: renamed from eth0
[  493.828685] Could not find device with ifindex 2000 in netnsfd 11
[  493.829165] Could not find netns with fd: 2000
[  493.829315] Cannot link a netdevsim to itself
[  493.829465] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).