[  472.478468] netdevsim netdevsim316 eni316np1: renamed from eth0
[  472.479263] netdevsim netdevsim553 eni553np1: renamed from eth1
[  472.552548] Could not find device with ifindex 2000 in netnsfd 11
[  472.552632] Could not find netns with fd: 2000
[  472.552675] Cannot link a netdevsim to itself
[  472.552726] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).