[  485.249589] netdevsim netdevsim294 eni294np1: renamed from eth0
[  485.350647] netdevsim netdevsim512 eni512np1: renamed from eth1
[  485.701368] Could not find device with ifindex 2000 in netnsfd 11
[  485.701530] Could not find netns with fd: 2000
[  485.701636] Cannot link a netdevsim to itself
[  485.701744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).