[  852.295196][T15642] netdevsim netdevsim450 eni450np1: renamed from eth0
[  852.324576][T15643] netdevsim netdevsim644 eni644np1: renamed from eth1
[  853.038404][T15630] Could not find device with ifindex 2000 in netnsfd 11
[  853.039106][T15630] Could not find netns with fd: 2000
[  853.040008][T15630] Cannot link a netdevsim to itself
[  853.040592][T15630] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).