[  478.617360] netdevsim netdevsim471 eni471np1: renamed from eth0
[  478.618264] netdevsim netdevsim709 eni709np1: renamed from eth1
[  478.704456] Could not find device with ifindex 2000 in netnsfd 11
[  478.704604] Could not find netns with fd: 2000
[  478.704704] Cannot link a netdevsim to itself
[  478.704822] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).