[  488.274481] netdevsim netdevsim320 eni320np1: renamed from eth0
[  488.275090] netdevsim netdevsim660 eni660np1: renamed from eth1
[  488.347850] Could not find device with ifindex 2000 in netnsfd 11
[  488.347941] Could not find netns with fd: 2000
[  488.347991] Cannot link a netdevsim to itself
[  488.348045] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).