[  476.091256] netdevsim netdevsim336 eni336np1: renamed from eth0
[  476.091421] netdevsim netdevsim686 eni686np1: renamed from eth1
[  476.191787] Could not find device with ifindex 2000 in netnsfd 11
[  476.191873] Could not find netns with fd: 2000
[  476.191915] Cannot link a netdevsim to itself
[  476.191965] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).