[  523.932379] netdevsim netdevsim574 eni574np1: renamed from eth1
[  524.029537] netdevsim netdevsim290 eni290np1: renamed from eth0
[  524.270043] Could not find device with ifindex 2000 in netnsfd 11
[  524.270276] Could not find netns with fd: 2000
[  524.270370] Cannot link a netdevsim to itself
[  524.270488] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).