[  472.242164] netdevsim netdevsim439 eni439np1: renamed from eth0
[  472.242647] netdevsim netdevsim632 eni632np1: renamed from eth1
[  472.317974] Could not find device with ifindex 2000 in netnsfd 11
[  472.318119] Could not find netns with fd: 2000
[  472.318225] Cannot link a netdevsim to itself
[  472.318346] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).