[  490.322764] netdevsim netdevsim444 eni444np1: renamed from eth0
[  490.323158] netdevsim netdevsim620 eni620np1: renamed from eth1
[  490.413743] Could not find device with ifindex 2000 in netnsfd 11
[  490.413838] Could not find netns with fd: 2000
[  490.413881] Cannot link a netdevsim to itself
[  490.413937] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).