[  487.200538] netdevsim netdevsim340 eni340np1: renamed from eth0
[  487.201310] netdevsim netdevsim709 eni709np1: renamed from eth1
[  487.273723] Could not find device with ifindex 2000 in netnsfd 11
[  487.273802] Could not find netns with fd: 2000
[  487.273845] Cannot link a netdevsim to itself
[  487.273900] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).