[  478.590457] netdevsim netdevsim490 eni490np1: renamed from eth0
[  478.591474] netdevsim netdevsim653 eni653np1: renamed from eth0
[  478.688375] Could not find device with ifindex 2000 in netnsfd 11
[  478.688486] Could not find netns with fd: 2000
[  478.688541] Cannot link a netdevsim to itself
[  478.688602] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).