[  494.037764] netdevsim netdevsim320 eni320np1: renamed from eth0
[  494.133045] netdevsim netdevsim684 eni684np1: renamed from eth1
[  494.387024] Could not find device with ifindex 2000 in netnsfd 11
[  494.387289] Could not find netns with fd: 2000
[  494.387385] Cannot link a netdevsim to itself
[  494.387487] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).