[  522.608303] netdevsim netdevsim564 eni564np1: renamed from eth1
[  522.704773] netdevsim netdevsim455 eni455np1: renamed from eth0
[  522.968909] Could not find device with ifindex 2000 in netnsfd 11
[  522.969111] Could not find netns with fd: 2000
[  522.969200] Cannot link a netdevsim to itself
[  522.969301] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).