[  744.716730][T14441] netdevsim netdevsim504 eni504np1: renamed from eth0
[  744.744820][T14443] netdevsim netdevsim521 eni521np1: renamed from eth1
[  745.289420][T14429] Could not find device with ifindex 2000 in netnsfd 11
[  745.289946][T14429] Could not find netns with fd: 2000
[  745.290334][T14429] Cannot link a netdevsim to itself
[  745.290749][T14429] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).