[  489.062140] netdevsim netdevsim469 eni469np1: renamed from eth0
[  489.062373] netdevsim netdevsim684 eni684np1: renamed from eth1
[  489.154735] Could not find device with ifindex 2000 in netnsfd 11
[  489.154891] Could not find netns with fd: 2000
[  489.155007] Cannot link a netdevsim to itself
[  489.155142] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).