[  824.491743][T15765] netdevsim netdevsim509 eni509np1: renamed from eth0
[  824.507480][T15764] netdevsim netdevsim757 eni757np1: renamed from eth1
[  825.102832][T15751] Could not find device with ifindex 2000 in netnsfd 11
[  825.103489][T15751] Could not find netns with fd: 2000
[  825.104265][T15751] Cannot link a netdevsim to itself
[  825.104847][T15751] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).