[  486.048143] netdevsim netdevsim343 eni343np1: renamed from eth0
[  486.149809] netdevsim netdevsim704 eni704np1: renamed from eth1
[  486.485976] Could not find device with ifindex 2000 in netnsfd 11
[  486.486105] Could not find netns with fd: 2000
[  486.486168] Cannot link a netdevsim to itself
[  486.486251] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).