[  472.740918] netdevsim netdevsim301 eni301np1: renamed from eth0
[  472.741447] netdevsim netdevsim548 eni548np1: renamed from eth1
[  472.820307] Could not find device with ifindex 2000 in netnsfd 11
[  472.820397] Could not find netns with fd: 2000
[  472.820445] Cannot link a netdevsim to itself
[  472.820495] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).