[  497.153335] netdevsim netdevsim729 eni729np1: renamed from eth1
[  497.249480] netdevsim netdevsim274 eni274np1: renamed from eth0
[  497.507756] Could not find device with ifindex 2000 in netnsfd 11
[  497.508247] Could not find netns with fd: 2000
[  497.508394] Cannot link a netdevsim to itself
[  497.508559] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).