[  474.860671] netdevsim netdevsim470 eni470np1: renamed from eth0
[  474.861498] netdevsim netdevsim619 eni619np1: renamed from eth1
[  474.943426] Could not find device with ifindex 2000 in netnsfd 11
[  474.943511] Could not find netns with fd: 2000
[  474.943568] Cannot link a netdevsim to itself
[  474.943630] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).