[  731.123249][T13067] netdevsim netdevsim267 eni267np1: renamed from eth0
[  731.158819][T13070] netdevsim netdevsim727 eni727np1: renamed from eth1
[  731.994267][T13055] Could not find device with ifindex 2000 in netnsfd 11
[  731.995283][T13055] Could not find netns with fd: 2000
[  731.995793][T13055] Cannot link a netdevsim to itself
[  731.996356][T13055] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).