[  850.661735][T15853] netdevsim netdevsim379 eni379np1: renamed from eth0
[  850.667165][T15850] netdevsim netdevsim642 eni642np1: renamed from eth1
[  851.292845][T15839] Could not find device with ifindex 2000 in netnsfd 11
[  851.293499][T15839] Could not find netns with fd: 2000
[  851.293953][T15839] Cannot link a netdevsim to itself
[  851.294463][T15839] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).