[  856.563472][T15805] netdevsim netdevsim291 eni291np1: renamed from eth0
[  856.579332][T15803] netdevsim netdevsim579 eni579np1: renamed from eth1
[  857.154160][T15792] Could not find device with ifindex 2000 in netnsfd 11
[  857.159874][T15792] Could not find netns with fd: 2000
[  857.160526][T15792] Cannot link a netdevsim to itself
[  857.161056][T15792] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).