[  476.225915] netdevsim netdevsim473 eni473np1: renamed from eth0
[  476.226717] netdevsim netdevsim665 eni665np1: renamed from eth1
[  476.316703] Could not find device with ifindex 2000 in netnsfd 11
[  476.316897] Could not find netns with fd: 2000
[  476.317026] Cannot link a netdevsim to itself
[  476.317167] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).