[  475.104109] netdevsim netdevsim454 eni454np1: renamed from eth0
[  475.106408] netdevsim netdevsim687 eni687np1: renamed from eth1
[  475.195728] Could not find device with ifindex 2000 in netnsfd 11
[  475.195813] Could not find netns with fd: 2000
[  475.195856] Cannot link a netdevsim to itself
[  475.195909] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).