[  759.321677][T14724] netdevsim netdevsim500 eni500np1: renamed from eth0
[  759.340697][T14726] netdevsim netdevsim652 eni652np1: renamed from eth1
[  759.917416][T14712] Could not find device with ifindex 2000 in netnsfd 11
[  759.918017][T14712] Could not find netns with fd: 2000
[  759.918530][T14712] Cannot link a netdevsim to itself
[  759.919065][T14712] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).