[  488.768398] netdevsim netdevsim436 eni436np1: renamed from eth0
[  488.865930] netdevsim netdevsim665 eni665np1: renamed from eth1
[  489.094038] Could not find device with ifindex 2000 in netnsfd 11
[  489.094352] Could not find netns with fd: 2000
[  489.094481] Cannot link a netdevsim to itself
[  489.094618] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).