[  751.409830][T14565] netdevsim netdevsim430 eni430np1: renamed from eth0
[  751.432013][T14567] netdevsim netdevsim621 eni621np1: renamed from eth1
[  751.984824][T14553] Could not find device with ifindex 2000 in netnsfd 11
[  751.985332][T14553] Could not find netns with fd: 2000
[  751.985678][T14553] Cannot link a netdevsim to itself
[  751.986095][T14553] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).