[  489.294809] netdevsim netdevsim468 eni468np1: renamed from eth0
[  489.295337] netdevsim netdevsim661 eni661np1: renamed from eth1
[  489.386774] Could not find device with ifindex 2000 in netnsfd 11
[  489.386888] Could not find netns with fd: 2000
[  489.386935] Cannot link a netdevsim to itself
[  489.386990] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).