[  756.663110][T14460] netdevsim netdevsim321 eni321np1: renamed from eth0
[  756.674773][T14462] netdevsim netdevsim646 eni646np1: renamed from eth1
[  757.207356][T14448] Could not find device with ifindex 2000 in netnsfd 11
[  757.207841][T14448] Could not find netns with fd: 2000
[  757.208217][T14448] Cannot link a netdevsim to itself
[  757.208622][T14448] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).