[  457.413871] netdevsim netdevsim375 eni375np1: renamed from eth0
[  457.414805] netdevsim netdevsim722 eni722np1: renamed from eth1
[  457.501529] Could not find device with ifindex 2000 in netnsfd 11
[  457.501649] Could not find netns with fd: 2000
[  457.501694] Cannot link a netdevsim to itself
[  457.501748] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).