[  519.974386] netdevsim netdevsim578 eni578np1: renamed from eth1
[  520.074870] netdevsim netdevsim381 eni381np1: renamed from eth0
[  520.423736] Could not find device with ifindex 2000 in netnsfd 11
[  520.423881] Could not find netns with fd: 2000
[  520.423947] Cannot link a netdevsim to itself
[  520.424032] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).