[  459.772540] netdevsim netdevsim420 eni420np1: renamed from eth0
[  459.773119] netdevsim netdevsim710 eni710np1: renamed from eth1
[  459.857949] Could not find device with ifindex 2000 in netnsfd 11
[  459.858049] Could not find netns with fd: 2000
[  459.858095] Cannot link a netdevsim to itself
[  459.858148] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).