[  478.084919] netdevsim netdevsim273 eni273np1: renamed from eth0
[  478.085217] netdevsim netdevsim767 eni767np1: renamed from eth1
[  478.167969] Could not find device with ifindex 2000 in netnsfd 11
[  478.168075] Could not find netns with fd: 2000
[  478.168125] Cannot link a netdevsim to itself
[  478.168182] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).