[  512.279468] netdevsim netdevsim394 eni394np1: renamed from eth0
[  512.377716] netdevsim netdevsim682 eni682np1: renamed from eth1
[  512.608362] Could not find device with ifindex 2000 in netnsfd 11
[  512.608599] Could not find netns with fd: 2000
[  512.608704] Cannot link a netdevsim to itself
[  512.608846] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).