[  477.993308] netdevsim netdevsim447 eni447np1: renamed from eth0
[  477.993809] netdevsim netdevsim531 eni531np1: renamed from eth1
[  478.098195] Could not find device with ifindex 2000 in netnsfd 11
[  478.098352] Could not find netns with fd: 2000
[  478.098459] Cannot link a netdevsim to itself
[  478.098599] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).