[  520.712043] netdevsim netdevsim394 eni394np1: renamed from eth0
[  520.808933] netdevsim netdevsim514 eni514np1: renamed from eth1
[  521.061493] Could not find device with ifindex 2000 in netnsfd 11
[  521.061696] Could not find netns with fd: 2000
[  521.061779] Cannot link a netdevsim to itself
[  521.061895] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).