[  475.848378] netdevsim netdevsim396 eni396np1: renamed from eth0
[  475.849136] netdevsim netdevsim635 eni635np1: renamed from eth1
[  475.943518] Could not find device with ifindex 2000 in netnsfd 11
[  475.943602] Could not find netns with fd: 2000
[  475.943646] Cannot link a netdevsim to itself
[  475.943696] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).