[  484.448165] netdevsim netdevsim286 eni286np1: renamed from eth0
[  484.549546] netdevsim netdevsim516 eni516np1: renamed from eth1
[  484.896939] Could not find device with ifindex 2000 in netnsfd 11
[  484.897088] Could not find netns with fd: 2000
[  484.897164] Cannot link a netdevsim to itself
[  484.897252] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).