[  879.425656][T15779] netdevsim netdevsim508 eni508np1: renamed from eth0
[  879.452243][T15781] netdevsim netdevsim521 eni521np1: renamed from eth1
[  880.056256][T15767] Could not find device with ifindex 2000 in netnsfd 11
[  880.057087][T15767] Could not find netns with fd: 2000
[  880.057562][T15767] Cannot link a netdevsim to itself
[  880.058191][T15767] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).