[  771.919723][T14802] netdevsim netdevsim393 eni393np1: renamed from eth0
[  771.955899][T14805] netdevsim netdevsim619 eni619np1: renamed from eth1
[  772.570621][T14790] Could not find device with ifindex 2000 in netnsfd 11
[  772.575662][T14790] Could not find netns with fd: 2000
[  772.576054][T14790] Cannot link a netdevsim to itself
[  772.576470][T14790] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).