[  520.876521] netdevsim netdevsim767 eni767np1: renamed from eth1
[  520.974387] netdevsim netdevsim284 eni284np1: renamed from eth0
[  521.229427] Could not find device with ifindex 2000 in netnsfd 11
[  521.229614] Could not find netns with fd: 2000
[  521.229714] Cannot link a netdevsim to itself
[  521.229820] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).