[  454.645109] netdevsim netdevsim473 eni473np1: renamed from eth0
[  454.646439] netdevsim netdevsim639 eni639np1: renamed from eth1
[  454.733469] Could not find device with ifindex 2000 in netnsfd 11
[  454.733606] Could not find netns with fd: 2000
[  454.733705] Cannot link a netdevsim to itself
[  454.733820] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).