[  517.278775] netdevsim netdevsim603 eni603np1: renamed from eth1
[  517.375948] netdevsim netdevsim438 eni438np1: renamed from eth0
[  517.630195] Could not find device with ifindex 2000 in netnsfd 11
[  517.630374] Could not find netns with fd: 2000
[  517.630454] Cannot link a netdevsim to itself
[  517.630563] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).