[  487.729235] netdevsim netdevsim500 eni500np1: renamed from eth0
[  487.731676] netdevsim netdevsim584 eni584np1: renamed from eth1
[  487.819838] Could not find device with ifindex 2000 in netnsfd 11
[  487.819926] Could not find netns with fd: 2000
[  487.819978] Cannot link a netdevsim to itself
[  487.820032] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).