[  466.497457] netdevsim netdevsim297 eni297np1: renamed from eth0
[  466.498447] netdevsim netdevsim658 eni658np1: renamed from eth1
[  466.600700] Could not find device with ifindex 2000 in netnsfd 11
[  466.600855] Could not find netns with fd: 2000
[  466.600924] Cannot link a netdevsim to itself
[  466.601044] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).