[  486.551536] netdevsim netdevsim342 eni342np1: renamed from eth0
[  486.648917] netdevsim netdevsim539 eni539np1: renamed from eth1
[  486.841691] Could not find device with ifindex 2000 in netnsfd 11
[  486.841973] Could not find netns with fd: 2000
[  486.842100] Cannot link a netdevsim to itself
[  486.842204] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).