[  511.575756] netdevsim netdevsim488 eni488np1: renamed from eth0
[  511.672493] netdevsim netdevsim637 eni637np1: renamed from eth1
[  511.885656] Could not find device with ifindex 2000 in netnsfd 11
[  511.885844] Could not find netns with fd: 2000
[  511.885930] Cannot link a netdevsim to itself
[  511.886034] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).