[  486.920591] netdevsim netdevsim508 eni508np1: renamed from eth0
[  487.017384] netdevsim netdevsim566 eni566np1: renamed from eth1
[  487.227728] Could not find device with ifindex 2000 in netnsfd 11
[  487.228008] Could not find netns with fd: 2000
[  487.228080] Cannot link a netdevsim to itself
[  487.228165] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).