[  484.164658] netdevsim netdevsim439 eni439np1: renamed from eth0
[  484.265970] netdevsim netdevsim635 eni635np1: renamed from eth1
[  484.603497] Could not find device with ifindex 2000 in netnsfd 11
[  484.603662] Could not find netns with fd: 2000
[  484.603746] Cannot link a netdevsim to itself
[  484.603860] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).