[  472.722198] netdevsim netdevsim722 eni722np1: renamed from eth1
[  472.722394] netdevsim netdevsim376 eni376np1: renamed from eth0
[  472.802598] Could not find device with ifindex 2000 in netnsfd 11
[  472.802680] Could not find netns with fd: 2000
[  472.802726] Cannot link a netdevsim to itself
[  472.802775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).