[  758.109924][T14562] netdevsim netdevsim257 eni257np1: renamed from eth0
[  758.122968][T14564] netdevsim netdevsim723 eni723np1: renamed from eth1
[  758.691915][T14550] Could not find device with ifindex 2000 in netnsfd 11
[  758.692455][T14550] Could not find netns with fd: 2000
[  758.692810][T14550] Cannot link a netdevsim to itself
[  758.693222][T14550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).