[  484.222941] netdevsim netdevsim486 eni486np1: renamed from eth0
[  484.223462] netdevsim netdevsim539 eni539np1: renamed from eth1
[  484.313787] Could not find device with ifindex 2000 in netnsfd 11
[  484.313938] Could not find netns with fd: 2000
[  484.314045] Cannot link a netdevsim to itself
[  484.314159] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).